Thursday, April 30, 2015

Devilish Details

I'm seeing
Puzzling evidence
     -Talking Heads

Who would have thought...?
It figures
     _Alanis Morissette

Greetings 
     Tip O'Neil once is said "All politics is local."  Perhaps the same might be said of energy.  For instance , it is well recognized that any benefits of driving an eletric car will depend on the fuel used to generate the electricity.  See PNAS study : here.   So, if if you fill up in a state that relies mainly on coal, driving your EV may be worse than your old  ICE.  On the other hand if you live in hydro heavy northwest, you will see some environmental benefit.

       How about the environmental benefits of solar panels?   The article below  here (h/t Ben) , provides an interesting analysis of pv panels.  The author reasons that  there are several factors that need to be considered :  The energy that goes into the panels. the energy required to transport it to where it is used, and the solar influx of the location where it is used .  

     Most  PV panels are made in China  (87%!), which has a notoriously dirty energy system.  They are shipped around the world, and may end up in a country with less than optimal sunny-ness.  Like Germany  (or Oregon).  The author  suggest that in such a scenario, you would still get some benefit - but much lower than advertised.   Here, he calculates the impacts , without transportation.

 "If solar modules manufactured in China are installed in Germany, then the carbon footprint increases to about 120 gCO2e/kWh for both mono- and multi-si -- which makes solar PV only 3.75 times less carbon-intensive than natural gas, not 15 times."  


     The author takes the analysis one step further, by analyzing the growth rate of the PV systems.  As we know, the carbon impact of a PV system is "front loaded" in the early years.  Thus there is a "burp" of CO2 at the beginning,  and the system is in carbon "debt" for a number of years while it is off setting grid power.  With an individual panel, the debt is paid off in the later years.  However in a growing industry, the payback from the early panel is swamped by the debt of  manufacture of the later panels.    The author attempts to look at this factor across the industry using "dynamic life cycle analysis"    He notes:

"This means that the net CO2 balance of solar PV was negative for the period 1998-2008. Solar PV power was growing too fast to be sustainable, and the aggregate of solar panels actually increased GHG emissions and energy use. According to the paper, the net CO2 emissions of the solar PV industry during those 10 years accounted to 800,000 tonnes of CO2. [16] These figures take into account the fact that, as a consequence of a cleaner grid and better manufacturing processes, the production of solar PV panels becomes more energy efficient and less carbon-intensive over time.

       This is kind of an odd result.   For now, we may actually be digging the hole deeper, while we think we are making things better.  Do we ever get out of carbon debt?    Presumably, once all the needed PV's are installed.  But , pretty soon we have start doing it all over, as the current PV's degrade and we have to replace them.  
       He does suggest  one possible way out.

"By carefully selecting the locations for production and installation we could improve the sustainability of solar PV power in a spectacular way. For PV modules produced in countries with low-carbon energy grids -- such as France, Norway, Canada or Belgium -- and installed in countries with high insolation and carbon-intensive grids -- such as China, India, the Middle East or Australia -- greenhouse gas emissions can be as low as 6-9 gCO2/kWh of generated electricity. [16] [20] [14-15] That's 13 to 20 times less CO2 per kWh than solar PV cells manufactured in China and installed in Germany. [25]

            When we consider "green power" it is easy to forget the industrial economy that is needed for its development, manufacture, installations, and operation.  For an interesting tour of the various industries behind PV panels - Take a look here

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How Sustainable is PV Solar Power?

How sustainable is pv solar powerSolar photovoltaic (PV) systems generate "free" electricity from sunlight, but manufacturing them is an energy-intensive process.
It's generally assumed that it only takes a few years before solar panels have generated as much energy as it took to make them, resulting in very low greenhouse gas emissions compared to conventional grid electricity.
However, the studies upon which this assumption is based are written by a handful of researchers who arguably have a positive bias towards solar PV. A more critical analysis shows that the cumulative energy and CO2 balance of the industry is negative, meaning that solar PV has actually increased energy use and greenhouse gas emissions instead of lowering them.
This doesn't mean that the technology is useless. It's just that our approach is wrong. By carefully selecting the location of the manufacturing and the installation of solar panels, the potential of solar power could be huge. We have to rethink the way we use and produce solar energy systems on a global scale.
Picture: Jonathan Potts.


There's nothing but good news about solar energy these days. The average global price of PV panels has plummeted by more than 75% since 2008, and this trend is expected to continue in the coming years, though at a lower rate. [1-2] According to the 2015 solar outlook by investment bank Deutsche Bank, solar systems will be at grid parity in up to 80% of the global market by the end of 2017, meaning that PV electricity will be cost-effective compared to electricity from the grid. [3-4]
Lower costs have spurred an increase in solar PV installments. According to the Renewables 2014 Global Status Report, a record of more than 39 gigawatt (GW) of solar PV capacity was added in 2013, which brings total (peak) capacity worldwide to 139 GW at the end of 2013. While this is not even enough to generate 1% of global electricity demand, the growth is impressive. Almost half of all PV capacity in operation today was added in the past two years (2012-2013). [5] In 2014, an estimated 45 GW was added, bringing the total to 184 GW. [6] [4].
Solar PV total global capacitySolar PV total global capacity, 2004-2013. Source: Renewables 2014 Global Status Report.
Meanwhile, solar cells are becoming more energy efficient, and the same goes for the technology used to manufacture them. For example, the polysilicon content in solar cells -- the most energy-intensive component -- has come down to 5.5-6.0 grams per watt peak (g/wp), a number that will further decrease to 4.5-5.0 g/wp in 2017. [2] Both trends have a positive effect on the sustainability of solar PV systems. According to the latest life cycle analyses, which measure the environmental impact of solar panels from production to decommission, greenhouse gas emissions have come down to around 30 grams of CO2-equivalents per kilwatt-hour of electricity generated (gCO2e/kWh), compared to 40-50 grams of CO2-equivalents ten years ago. [7-11] [12]
According to these numbers, electricity generated by photovoltaic systems is 15 times less carbon-intensive than electricity generated by a natural gas plant (450 gCO2e/kWh), and at least 30 times less carbon-intensive than electricity generated by a coal plant (+1,000 gCO2e/kWh). The most-cited energy payback times (EPBT) for solar PV systems are between one and two years. It seems that photovoltaic power, around since the 1970s, is finally ready to take over the role of fossil fuels.
Manufacturing has Moved to China
Unfortunately, a critical review of the PV solar industry paints a very different picture. Many commenters attribute the plummeting cost of solar PV to more efficient manufacturing processes and scale economies. However, if we look at the graph below, we see that the decline in costs accelerates sharply from 2009 onwards. This acceleration has nothing to do with more efficient manufacturing processes or a technological breakthrough. Instead, it's the consequence of moving almost the entire PV manufacturing industry from western countries to Asian countries, where labour and energy are cheaper and where environmental restrictions are more loose.
Less than 10 years ago, almost all solar panels were produced in Europe, Japan, and the USA. In 2013, Asia accounted for 87% of global production (up from 85% in 2012), with China producing 67% of the world total (62% in 2012). Europe's share continued to fall, to 9% in 2013 (11% in 2012), while Japan's share remained at 5% and the US share was only 2.6%. [5]
Price of silicon solar cells wikipedia
Compared to Europe, Japan and the USA, the electric grid in China is about twice as carbon-intensive and about 50% less energy efficient. [13-15] Because the manufacture of solar PV cells relies heavily on the use of electricity (for more than 95%) [16], this means that in spite of the lower prices and the increasing efficiency, the production of solar cells has become more energy-intensive, resulting in longer energy payback times and higher greenhouse gas emissions. The geographical shift in manufacturing has made almost all life cycle analyses of solar PV panels obsolete, because they are based on a scenario of domestic manufacturing, either in Europe or in the United States.
LCA of Solar Panels Manufactured in China
We could find only one study that investigates the manufacturing of solar panels in China, and it's very recent. In 2014, a team of researchers performed a comparative life cycle analysis between domestic and overseas manufacturing scenarios, taking into account geographic diversity by utilizing localized inventory data for processes and materials. [13] In the domestic manufacturing scenario, silicon PV modules (mono-si with 14% efficiency and multi-si with 13.2% efficiency) are made and installed in Spain. In the overseas manufacturing scenario, the panels are made in China and installed in Spain.
For solar panels manufactured in China, the carbon footprint and the energy payback time are almost doubled
Compared to the domestic manufacturing scenario, the carbon footprint and the energy payback time are almost doubled in the overseas manufacturing scenario. The carbon footprint of the modules made in Spain (which has a cleaner grid than the average in Europe) is 37.3 and 31.8 gCO2e/kWh for mono-si and multi-si, respectively, while the energy payback times are 1.9 and 1.6 years. However, for the modules made in China, the carbon footprint is72.2 and 69.2 gCO2e/kWh for mono-si and multi-si, respectively, while the energy payback times are 2.4 and 2.3 years. [13]
Carbon footprints solar cells produced in china and europe
At least as important as the place of manufacturing is the place of installation. Almost all LCAs -- including the one that deals with manufacturing in China -- assume a solar insolation of 1,700 kilowatt-hour per square meter per year (kWh/m2/yr), typical of Southern Europe and the southwestern USA. If solar modules manufactured in China are installed in Germany, then the carbon footprint increases to about 120 gCO2e/kWh for both mono- and multi-si -- which makes solar PV only 3.75 times less carbon-intensive than natural gas, not 15 times.
Considering that at the end of 2014, Germany had more solar PV installed than all Southern European nations combined, and twice as much as the entire United States, this number is not a worst-case scenario. It reflects the carbon intensity of most solar PV systems installed between 2009 and 2014. More critical researchers had already anticipated these results. A 2010 study refers to the 2008 consensus figure of 50 gCO2e/kWh mentioned above, and adds that "in less sunny locations, or in carbon-intensive economies, these emissions can be up to 2-4 times higher". [17] Taking the more recent figure of 30 gCO2e/kWh as a starting point, which reflects improvements in solar cell and manufacturing efficiency, this would be 60-120 gCO2e/kWh, which corresponds neatly with the numbers of the 2014 study.
Solar insolation in europe
Solar insolation in north america
Solar insolation in Europe and the USA. Source: SolarGIS.
These results don't include the energy required to ship the solar panels from China to Europe. Transportation is usually ignored in LCAs of solar panels that assume domestic production, which would make comparisons difficult. Furthermore, energy requirements for transportation are very case-specific. It should also be kept in mind that these results are based on a solar PV lifespan of 30 years. This might be over-optimistic, because the relocation of manufacturing to China has been associated with a decrease in the quality of PV solar panels. [18] Research has shown that the percentage of defective or under-performing PV cells has risen substantially in recent years, which could have a negative influence on the lifespan of the average solar panel, decreasing its sustainability.
Energy Cannibalism
Solar PV electricity remains less carbon-intensive than conventional grid electricity, even when solar cells are manufactured in China and installed in countries with relatively low solar insolation. This seems to suggest that solar PV remains a good choice no matter where the panels are produced or installed. However, if we take into account the growth of the industry, the energy and carbon balance can quickly turn negative. That's because at high growth rates, the energy and CO2 savings made by the cumulative installed capacity of solar PV systems can be cancelled out by the energy use and CO2 emissions from the production of new installed capacity. [16] [19-20]
At high growth rates, the energy and CO2 savings made by the cumulative installed capacity of solar PV systems can be cancelled out by the energy use and CO2 emissions from the production of new installed capacity
A life cycle analysis that takes into account the growth rate of solar PV is called a "dynamic" life cycle analysis, as opposed to a "static" LCA, which looks only at an individual solar PV system. The two factors that determine the outcome of a dynamic life cycle analysis are the growth rate on the one hand, and the embodied energy and carbon of the PV system on the other hand. If the growth rate or the embodied energy or carbon increases, so does the "erosion" or "cannibalization" of the energy and CO2 savings made due to the production of newly installed capacity. [16]
For the deployment of solar PV systems to grow while remaining net greenhouse gas mitigators, they must grow at a rate slower than the inverse of their CO2 payback time. [19] For example, if the average energy and CO2 payback times of a solar PV system are four years and the industry grows at a rate of 25%, no net energy is produced and no greenhouse gas emissions are offset. [19] If the growth rate is higher than 25%, the aggregate of solar PV systems actually becomes a net CO2 and energy sink. In this scenario, the industry expands so fast that the energy savings and GHG emissions prevented by solar PV systems are negated to fabricate the next wave of solar PV systems. [20]
The CO2 Balance of Solar PV
Several studies have undertaken a dynamic life cycle analysis of renewable energy technologies. The results -- which are valid for the period between 1998 and 2008 -- are very sobering for those that have put their hopes on the carbon mitigation potential of solar PV power. A 2009 paper, which takes into account the geographical distribution of global solar PV installations, sets the maximum sustainable annual growth rate at 23%, while the actual average annual growth rate of solar PV between 1998 and 2008 was 40%. [16] [21]
5241805533_88dc0e75a8_z
This means that the net CO2 balance of solar PV was negative for the period 1998-2008. Solar PV power was growing too fast to be sustainable, and the aggregate of solar panels actually increased GHG emissions and energy use. According to the paper, the net CO2 emissions of the solar PV industry during those 10 years accounted to 800,000 tonnes of CO2. [16] These figures take into account the fact that, as a consequence of a cleaner grid and better manufacturing processes, the production of solar PV panels becomes more energy efficient and less carbon-intensive over time.
Between 2009 and 2014, solar PV grew four times too fast to be sustainable
The sustainability of solar PV has further deteriorated since 2008. On the one hand, industry growth rates have accelerated. Solar PV grew on average by 59% per year between 2008 and 2014, compared to an annual growth rate of 40% between 1998 and 2008 . [5] On the other hand, manufacturing has become more carbon-intensive. For its calculations of the CO2 balance in 2008, the study discussed above considers the carbon intensity of production worldwide to be 500 gCO2e/kWh. In 2013, with 87% of the production in Asia, this number had risen to about 950 gCO2e/kWh, which halves the maximum sustainable growth rate to about 12%.
If we also take into account the changes in geographic distribution of solar panels, with an increasing percentage installed in regions with higher solar insolation, the maximum sustainable growth rate increases to about 16%. [23-24] Although more recent research is not available, it's obvious that the CO2 emissions of the solar PV industry have further increased during the period 2009-2014. If we would consider all solar panels in the world as one large energy generating plant, it would not have generated any net energy or CO2-savings.
The Solution: Rethink the Manufacture and Use of Solar PV
Obviously, the net CO2 balance of solar PV could be improved by limiting the growth of the industry, but that would be undesirable. If we want solar PV to become important, it has to grow fast. Therefore, it's much more interesting to focus on lowering the embodied energy of solar PV power systems, which automatically results in higher sustainable growth rates. The shorter the energy and CO2 payback times, the faster the industry can grow without becoming a net producer of CO2.
Annual net CO2 balance at different growth rates solar PV
Annual net CO2 balance of the crystalline silicon PV industry at different growth rates for different combinations of countries of production and installation. Source: Briner 2009.
Embodied energy and CO2 will gradually decrease because of technological advances such as higher solar cell efficiencies and more efficient manufacturing techniques, and also as a consequence of the recycling of solar panels, which is not yet a reality. However, what matters most is where solar panels are manufactured, and where they are installed. The location of production and installation is a decisive factor because there are three parameters in a life cycle analysis that are location dependent: the carbon intensity of the electricity used in production, the carbon intensity of the displaced electricity mix at the place of installation, and the solar insolation in the place of installation. [16]
By carefully selecting the locations for production and installation we could improve the sustainability of solar PV power in a spectacular way. For PV modules produced in countries with low-carbon energy grids -- such as France, Norway, Canada or Belgium -- and installed in countries with high insolation and carbon-intensive grids -- such as China, India, the Middle East or Australia -- greenhouse gas emissions can be as low as 6-9 gCO2/kWh of generated electricity. [16] [20] [14-15] That's 13 to 20 times less CO2 per kWh than solar PV cells manufactured in China and installed in Germany. [25]
Sustainable growth rates of 300-460% are possible when PV modules are produced in countries with low-carbon energy grids and installed in countries with high insolation and carbon-intensive grids
This would allow sustainable growth rates of up to 300-460%, far above what's even necessary. If solar PV would grow on average at a rate of 100% per year, it would take less than 10 years to meet today's electricity's demand. If it would grow at the 16% maximum sustainable growth rate we calculated above, meeting today's electricity demand would take until 2045 -- with no net CO2 savings. By that time, according to the forecasts, total global electricity demand will have more than doubled. [26]
Of course, producing and installing solar panels in the right places implies international cooperation and a sound economic system, none of which exist. Manufacturing solar panels in Europe or the USA would also make them more expensive again, while many countries with the right conditions for solar don't have the money to install them in large amounts.
CO2 mitigation potential of PV produced in china
CO2 mitigation potential for crystalline silicon PV modules produced in China and installed in different countries. Source: Briner 2009.
An alternative solution is using on-site generation from renewables to meet a greater proportion of the electricity demand of PV manufacturing facilities -- which can also happen in a country with a carbon-intensive grid. For example, if the electricity for the manufacturing of solar cells would be supplied by other solar cells, then the greenhouse emissions of solar PV systems could be reduced by 50-70%, depending on where they are produced (Europe or the USA). [7] In China, this decrease in CO2 emissions would even be greater.
In yet another scenario, we could dedicate nuclear plants exclusively to the manufacture of solar cells. Because nuclear is less carbon-intensive than PV solar, this sounds like the fastest, cheapest and easiest way to start producing a massive amount of solar cells without raising energy use and greenhouse emissions. But don't underestimate the task ahead. A 1 GW nuclear power plant can produce about 11 million square metres of solar panels per year, which corresponds to 1.66 GWp of solar power (based on the often cited average number of 150 w/m2). We would have needed 24 nuclear plants -- or 1 in 20 atomic plants worldwide -- working full-time to produce the solar panels manufactured in 2013. [27]
What About Storage?
Why does the production of solar PV requires so much energy? Because the low power density -- several orders of magnitude below fossil fuels -- and the intermittency of solar power require a much larger energy infrastructure than fossil fuels do. It's important to realize that the intermittency of solar power is not taken into account in our analysis. Solar power is not always available, which means that we need a backup-source of power or a storage system to jump in when the need is there. This component is usually not considered in LCAs of solar PV, even though it has a large influence on the sustainability of solar power.
E3DC_A_S10_seitlich_weissStorage is no longer an academic question because several manufacturers -- most notably Tesla -- are pushing lithium-ion battery storage as an alternative for a grid-connected solar PV system. Lithium-ion batteries are more compact and technically superior to the lead-acid batteries commonly used in off-grid solar systems. Furthermore, the disincentivation of  grid-connected solar systems in a growing number of countries makes off-grid systems more attractive.
In the next article, we investigate the sustainability of a PV-system with a lithium-ion battery. Meanwhile, enjoy the sun and stay tuned.
Kris De Decker (edited by Aaron Vansintjan)

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Friday, November 14, 2014

Feeling lucky?


Baby, even the losers
get lucky sometimes
   -Tom Petty
Greetings
     It seems that China and Obama have agreed on terms for a Climate Change treaty.   Ignoring for a moment whether Obama a can deliver, one might ask, whether it makes any difference.
      We are all used to the notion of compromise, and a " first step"  or a "step in the right direction".   And using that sort of measuring stick, you could argue that any US and China commitment to reduce emissions is a good thing. 
     Some folks are calling it  a landmark  agreement.   Grist calls it a "game changer"
    It's a little short on details, so it's hard to evaluate.    But let's assume the best.   According to this analysis, China' s 2030 peak is pretty much a given.   The US  reductions are a little more iffy.   So, that's 45% of the emissions . If the rest of the world made  similar commitments, ( also iffy) we might have a 50 - 50 chance of staying under 2 degrees.  
Are you feeling lucky?
      Other analyses may differ. Here's a recent piece from Scientific American where,  Dr Michael Mann shows argues (using an ECS of 3), in order to stay under 2 degrees, "  fossil-fuel burning would essentially have to cease immediately" , and that we will probably hit 2 degrees by 2036 (ECS of 3) or 2046 (ECS of 2.5).  
        Below, Kevin Anderson discusses the underlying question " Is some deal better than no deal"    ?      As you might guess,  he' s not too enamored  with a weak deal, because we'd just end up with " a slightly modified business as usual future heading for temperature rises of 4C or more."
"If we can’t get anywhere, then let’s have the international community be honest about this and admit they have failed to deliver and that the world must prepare for very high levels of climate change. We mustn’t continue to hide our abject failure behind some long, eloquent document absent of substance."
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former director of the Tyndall Centre, the UK's leading academic climate change research organisation, talks to chinadialogue's Tom Levitt about climate politics and his hopes for a global deal on reducing emissions by the end of 2015.
Tom Levitt (TL): Is any deal better than no deal at the UN climate summit in Paris next year?
Kevin Anderson (KA): No, I don’t think it is. If no worthwhile deal appears to be forthcoming from Paris then first we have to be open and honest about that, and put in an emergency timetable to bring leaders together again to hammer out a deal. What will happen with a weak deal is targets or frameworks far removed from those necessary to meet the 2C commitments - first agreed by leaders at the Copenhagen Summit in 2009 - will be used to inform the basis of national policies. In practice we’d then likely only achieve a proportion of those and thereby lock in a slightly modified business as usual future heading for temperature rises of 4C or more.
Rather than having a weak and irrelevant deal that would stop the process of significant mitigation for another four or five years, we have to drive a process to bring our leaders back to negotiations. If we can’t get anywhere, then let’s have the international community be honest about this and admit they have failed to deliver and that the world must prepare for very high levels of climate change. We mustn’t continue to hide our abject failure behind some long, eloquent document absent of substance.
TL: How do you see the European Union’s leadership role on climate change?
KA: The EU has not developed internal policies that are in any way consistent with its repeated and expressed goals of avoiding the 2C characterisation of dangerous climate change. The EU is now aiming for what it says is an ambitious target of a 40% reduction in emissions by 2030. That’s far too weak. We need to achieve more than double that for the EU to be making its reasonably fair contribution to a 2C future as outlined by the IPCC. The science and the numbers that come out of the IPCC report in terms of the carbon budget – taking into account a reasonable element of equity - would mean nations and regions like the US, EU and Australia would need to reduce their emissions at a much faster rate than even the EU is considering.
TL: The UK has been seen as a leader on climate change since the passing of the Climate Change Act in 2008. But is it now in danger of ditching or failing to meet its commitments?
KA: To its credit the UK does have carbon budgets, but, unlike the 80% target for 2050 outlined in the Climate Change Act, they are not enshrined in law. The long-term, 2050 targets are irrelevant and worse still misleading in relation to climate change. The only thing that matters is the build-up of greenhouse gases, particularly CO2, in the atmosphere, in other words carbon budgets. The problem with the UK’s 2050 80% target is that it allows us to think that we can do things tomorrow that we failed to do today. If no agreement is reached in Paris next year, there may be increasing pressure on the government to repeal the Act itself. And even if the Act remains, I think the influence of the Committee on Climate Change may be reduced, and there is a risk that it could be abolished.
TL: If we were to have a realistic chance of meeting the 2C target, what expectation would that put on China?
KA: If we look at the IPCC's carbon budgets for a reasonable chance of staying within a 2C framing of climate change, then the message is fairly stark for Annex 1 countries, i.e. the US, Europe, etc. They have to eliminate fossil fuel use from their energy system early in the 2030s. For non-Annex 1 countries, including and dominated by China, they would need to eliminate all fossil fuels from their energy system by 2050, but also they need to peak their emissions by the mid 2020s and, by 2030, be delivering decarbonisation rates of at least 10% reductions year on year. Together these give a good chance of staying below a 2C rise in temperature.
A big point for China is the issue of infrastructure development. When China constructs airports, ports, roads or buildings it is currently locking in very high energy-use and hence carbon futures, as even China will not be able to transition to low-carbon energy sources at sufficient rate. The other issue is trying to overcome the way the West frames success and progress. China has a very different philosophical and cultural background to that of the West so has real scope to think differently about what it means to be successful. The model we’ve developed in the West is dominated by consumption – that’s how we repeatedly measure success – let us hope China can propose alternatives.
TL: How far can the policies promoted by The New Climate Economy report and others like them take us in reducing GHG emissions and tackling climate change?
KA: The first thing to bear in mind is that these reports are primarily about greening growth. They are not about climate stabilisation. That’s an important distinction. They are genuinely interested in how we can green the process of economic development, but they are not thinking about what the science says about carbon budgets and keeping to the 2C target. That’s a real danger because there is an assumption that if we green growth that’s adequate. But if the temperature keeps rising then the implications of a rapidly changed climate will, overall, play out negatively in terms of economic development.
These reports are authored by well meaning people trying to figure out how far you can push the current socio-economic and political systems to address climate change. The fact is that the speed and depth of mitigation now required for 2C begs fundamental questions of the current systems. Perhaps these systems could have addressed climate change if they’d responded appropriately at the time of the first IPCC report almost a quarter of a century ago. But in 2014 our emissions are 60-65% higher than they were in 1990 and are showing no signs of coming down in the next few years.
TL: Do you still have faith in the UN process or is it time to pursue alternatives like bilateral deals?
KA: I am all for continuing with the UNFCCC (United Nations Framework Convention on Climate Change) and related processes, I think we need to be pushing them as hard as we can. But there are other things we should do alongside them. The UK’s Climate Change Act was a separate process, outside of the UNFCCC, as were the EU negotiations. We already have a mix of approaches. It’s a mistake to think that these can’t be designed to complement the UN negotiations. Ultimately however, if you are serious about climate change as a global problem then a global framework is necessary to understand the collective implications of everyone’s efforts. It is foolish and naïve to decry the UN process assuming you could substitute it for smaller, bilateral or other negotiations – these are necessary, but only as a complement to the UN process.
TL: Why do you think that message about 2C isn’t getting through to policymakers?
KA: Those of us in the scientific community who have been developing emissions scenarios and pathways have not served the policy-makers or civil society well. We have collectively adopted the approach of the New Climate Economy authors in trying to second-guess how hard we can push the political and economic system. It is our job as academics to stand outside of such constraints and say if the international community wants to meet it targets of 2C then these are the necessary carbon budgets and these are the range of accompanying emissions pathways. We should stand our ground as independent, objective analysts, much more than we have.
By trying to serve the political system in a way that is well meaning, we have ultimately undermined a robust understanding of the severity of the situation we have got ourselves into. It’s led us to the point today where we have squandered any reasonable opportunity of an evolutionary transition to 2°C, and now face revolutionary changes to our energy systems. The scale and timeframe of such systemic re-writing of energy supply, demand and distribution inevitably raises fundamental questions about the structure of contemporary society. 
We have squandered any reasonable chance of keeping within 2C of climate change unless we take draconian action, says climate scientist Kevin Anderson
The former director of the Tyndall Centre, the UK’s leading academic climate change research organisation, talks to chinadialogue’s Tom Levitt about climate politics and his hopes for a global deal on reducing emissions by the end of 2015.

KA: The EU has not developed internal policies that are in any way consistent with its repeated and expressed goals of avoiding the 2C characterisation of dangerous climate change. The EU is now aiming for what it says is an ambitious target of a 40% reduction in emissions by 2030. That’s far too weak. We need to achieve more than double that for the EU to be making its reasonably fair contribution to a 2C future as outlined by the IPCC. The science and the numbers that come out of the IPCC report in terms of the carbon budget – taking into account a reasonable element of equity – would mean nations and regions like the US, EU and Australia would need to reduce their emissions at a much faster rate than even the EU is considering.
TL: The UK has been seen as a leader on climate change since the passing of the Climate Change Act in 2008. But is it now in danger of ditching or failing to meet its commitments?
KA: To its credit the UK does have carbon budgets, but, unlike the 80% target for 2050 outlined in the Climate Change Act, they are not enshrined in law. The long-term, 2050 targets are irrelevant and worse still misleading in relation to climate change. The only thing that matters is the build-up of greenhouse gases, particularly CO2, in the atmosphere, in other words carbon budgets. The problem with the UK’s 2050 80% target is that it allows us to think that we can do things tomorrow that we failed to do today. If no agreement is reached in Paris next year, there may be increasing pressure on the government to repeal the Act itself. And even if the Act remains, I think the influence of the Committee on Climate Change may be reduced, and there is a risk that it could be abolished.
TL: If we were to have a realistic chance of meeting the 2C target, what expectation would that put on China?
KA: If we look at the IPCC’s carbon budgets for a reasonable chance of staying within a 2C framing of climate change, then the message is fairly stark for Annex 1 countries, i.e. the US, Europe, etc. They have to eliminate fossil fuel use from their energy system early in the 2030s. For non-Annex 1 countries, including and dominated by China, they would need to eliminate all fossil fuels from their energy system by 2050, but also they need to peak their emissions by the mid 2020s and, by 2030, be delivering decarbonisation rates of at least 10% reductions year on year. Together these give a good chance of staying below a 2C rise in temperature.
A big point for China is the issue of infrastructure development. When China constructs airports, ports, roads or buildings it is currently locking in very high energy-use and hence carbon futures, as even China will not be able to transition to low-carbon energy sources at sufficient rate. The other issue is trying to overcome the way the West frames success and progress. China has a very different philosophical and cultural background to that of the West so has real scope to think differently about what it means to be successful. The model we’ve developed in the West is dominated by consumption – that’s how we repeatedly measure success – let us hope China can propose alternatives.
TL: How far can the policies promoted by The New Climate Economy report and others like them take us in reducing GHG emissions and tackling climate change?
KA: The first thing to bear in mind is that these reports are primarily about greening growth. They are not about climate stabilisation. That’s an important distinction. They are genuinely interested in how we can green the process of economic development, but they are not thinking about what the science says about carbon budgets and keeping to the 2C target. That’s a real danger because there is an assumption that if we green growth that’s adequate. But if the temperature keeps rising then the implications of a rapidly changed climate will, overall, play out negatively in terms of economic development.
These reports are authored by well meaning people trying to figure out how far you can push the current socio-economic and political systems to address climate change. The fact is that the speed and depth of mitigation now required for 2C begs fundamental questions of the current systems. Perhaps these systems could have addressed climate change if they’d responded appropriately at the time of the first IPCC report almost a quarter of a century ago. But in 2014 our emissions are 60-65% higher than they were in 1990 and are showing no signs of coming down in the next few years.
TL: Do you still have faith in the UN process or is it time to pursue alternatives like bilateral deals?
KA: I am all for continuing with the UNFCCC (United Nations Framework Convention on Climate Change) and related processes, I think we need to be pushing them as hard as we can. But there are other things we should do alongside them. The UK’s Climate Change Act was a separate process, outside of the UNFCCC, as were the EU negotiations. We already have a mix of approaches. It’s a mistake to think that these can’t be designed to complement the UN negotiations. Ultimately however, if you are serious about climate change as a global problem then a global framework is necessary to understand the collective implications of everyone’s efforts. It is foolish and naïve to decry the UN process assuming you could substitute it for smaller, bilateral or other negotiations – these are necessary, but only as a complement to the UN process.
TL: Why do you think that message about 2C isn’t getting through to policymakers?
KA: Those of us in the scientific community who have been developing emissions scenarios and pathways have not served the policy-makers or civil society well. We have collectively adopted the approach of the New Climate Economy authors in trying to second-guess how hard we can push the political and economic system. It is our job as academics to stand outside of such constraints and say if the international community wants to meet it targets of 2C then these are the necessary carbon budgets and these are the range of accompanying emissions pathways. We should stand our ground as independent, objective analysts, much more than we have.
By trying to serve the political system in a way that is well meaning, we have ultimately undermined a robust understanding of the severity of the situation we have got ourselves into. It’s led us to the point today where we have squandered any reasonable opportunity of an evolutionary transition to 2°C, and now face revolutionary changes to our energy systems. The scale and timeframe of such systemic re-writing of energy supply, demand and distribution inevitably raises fundamental questions about the structure of contemporary society.

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Friday, March 21, 2014

China reduces local pollution, dooms climate



Greetings

     In an effort to deal with local pollution in its cities,  China is constructing a number of rural coal meg projects.   Some are quite large.

    With these projects, China could, by itself, use up the remaining carbon budget by 2050
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"Experts estimate that if China's planned coal bases are built, the country's emissions would likely hit 10 billion tons a year—putting it on track to consume the world's remaining 349 billion tons by 2050."




China Is Building a "Coal Base" the Size of LA


China, faced with ever-worsening pollution in its major cities—a recent reportdeemed Beijing "barely suitable for living"—is doing what so many industrializing nations have done before it: banishing its titanic smog spewers to poor or rural areas so everyone else can breathe easier. But China isn't just relegating its dirty coal-fired power plants to the outskirts of society; for years, it's been building 16 unprecedentedly massive, brand new "coal bases" in rural parts of the country. There, they won't stifle China's megacities; they'll churn out enough pollution to help smother the entire world.
The biggest of those bases, the Ningdong Energy and Chemical Industry Base, spans nearly 400 square miles, about the size of LA. It's already operational, and seemingly always expanding. It's operated by Shenhua, one of the biggest coal companies in the world. China hopes to uses these coal bases not just to host some of the world's largest coal-fired power plants, but to use super-energy intensive technology to convert the coal into a fuel called syngas and use it to make plastics and other materials. 
Syngas is healthier to breathe when burned than typical coal—but as Motherboardhas noted before, synthesizing the stuff emits nearly twice the carbon pollution. That's why when Inside Climate News, the Pulitzer Prize-winning investigative environmental outfit, traveled to China to investigate the operation, they, and a number of climate experts concluded it would "doom the climate." 
Image: Ningdong

Ningdong is the fossil fuel-guzzling centerpiece to the effort. Here's how Inside Climate's William J. Kelly describes the massive operation 700 miles west of Beijing:
Conceived in 2003, Shenhua said it broke ground in 2008 on the 386-square-mile coal base. That's an area about three-quarters the size of Los Angeles that's being covered bit by bit over a period of some 17 years with coal mines, power plants, power lines, pipelines, roads, rail tracks and all manner of chemical processing plants with their towers, smokestacks and tanks ... The project is so huge that engineers used the world's largest crane to set in place the unit that's to serve as the heart of the plant, a 2,155-ton Fischer-Tropsch synthesis reactor that's as high as a 17-story building.
Greenpeace has documented the carnage caused by the project in the region, charging that the coal plants are "triggering severe water crises in the country’s arid Northwest. This huge amount of water will be used for the water-intensive coal extraction, forcing deterioration of arid grassland and forcing herders to seek alternative livelihoods." In fact, the only limit on many of these coal plants that activists see is water itself—if they dry out the local water supplies, they won't be able to use it to extract coal.
Image: Greenpeace

It's projected to finally be finished by the end of the decade, when it will produce a jaw-dropping 30,000 MW of power, sucking down 100 million tons of coal every year in the process. And it's just one of over a dozen such sprawling operations.
As such, Ningdong does a fairly good job of epitomizing China's grave threat to the global climate system. A recent paper in Nature Climate Change noted that if all of the coal-to-gas plants get built, they'd produce 21 billion tons of CO2 alone. The Washington Post's Brad Plumer puts that in context: "The entire nation of China produced 7.7 billion tons of carbon-dioxide in 2011." Put simply, China's on a path to produce an unholy amount of carbon pollution.
Writing in Rolling Stone, Bill McKibben estimated that, based on climatologists' forecasts, humans worldwide can can only safely burn some 365 gigatons (or billions of tons) of carbon before we seriously disrupt the global climate system. Using those estimates, Kelly notes that even if China where to burn just 10 billion tons of carbon each year, that would put it "on track to consume the world's remaining 349 billion tons by 2050." After that, the table is set for runaway, or catastrophic, global warming.
China's giant coal bases, then, may very well be the largest looming threat to a stable global climate. 

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