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Showing posts with label greenhouse gas emissions. Show all posts
Showing posts with label greenhouse gas emissions. Show all posts

Wednesday, 7 November 2012

Backfiring biofuels in the EU

A version of this article as written by me appeared in The Hindu on November 8, 2012.

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The European Union (EU) announced on October 17 that the amount of biofuels that will be required to make up the transportation energy mix by 2020 has been halved from 10 per cent to 5 per cent. The rollback mostly affects first-generation biofuels, which are produced from food crops such as corn, sugarcane, and potato.

The new policy is in place to mitigate the backfiring of switching from less-clean fossil fuels to first-generation biofuels. An impact assessment study conducted in 2009-2012 by the EU found that greenhouse gas emissions were on the rise because of conversion of agricultural land to land for planting first-generation biofuel crops. In the process, authorities found that large quantities of carbon stock had been released into the atmosphere because of forest clearance and peatland-draining.

Moreover, because food-production has now been shifted to take place in another location, transportation and other logistic fuel costs will have been incurred, emissions due to which will also have to be factored in. These numbers fall under the causal ambit of indirect land-use change (ILUC), which also includes the conversion of previously untenable land to fertile land. On October 17, The Guardian published an article that called the EU's proposals "watered down" because it had chosen not to penalize fuel suppliers involved in the ILUC.


This writer believes that's only fair - that the EU not penalize the fuel suppliers - considering the "farming" of first-generation biofuels was enabled, rather incentivized by the EU, which would have well known that agricultural processes would be displaced and that agricultural output would drop in certain pockets. The backfiring happened only because the organization had underestimated the extent to which collateral emissions would outweigh the carbon-credits saved due to biofuel-use. (As for not enforcing legal consequences on those who manufacture only first-generation biofuels but go on to claim carbon credits arising from second-generation biofuel use as well: continue reading.)

Anyway, as a step toward achieving the new goals, the EU will impose an emissions threshold on the amount of carbon stock that can be released when some agricultural land is converted for the sake of biofuel crops. Essentially, this will exclude many biofuels from entering the market.

While this move reduces the acreage because “fuel-farming” eats it up, it is not without criticisms. As Tracy Carty, a spokeswoman for the poverty action group Oxfam, said over Twitter, “The cap is lower than the current levels of biofuels use and will do nothing to reduce high food prices.” Earlier, especially in the US, the recourse of first-generation biofuels such as biodiesel had been resorted to by farmers looking to cash in on their steady (and state-assured) demand as opposed to the volatility of food prices.

The October 17 announcement effectively revises the Renewable Energy Directive (RED), 2009, which first required that biofuels constitute 10 per cent of the alternate energy mix by 2020.

The EU is now incentivising second-generation biofuels, mostly in an implied manner, which are manufactured from crop residues such as organic waste, algae, and woody materials, and do not interfere with food-production. The RED also requires that biofuels that replace fossil fuels be at least 35 per cent more efficient. Now, the EU has revised that number to increase to 50 per cent in 2017, and to 60 per cent after 2020. This is a clear sign that first-generation biofuels, which enter the scene with a bagful of emissions, will be phased out while their second-generation counterparts will take their places - at least, this ought to happen considering the profitability of first-generation alternatives is set to go down.

However, the research concerning high-performance biofuels is still nascent. As of now, it has been aimed at extracting the maximum amount of fuel from available stock, not as much at improving their efficiency. This is especially observed with the extraction of ethanol from wood, high-efficiency microalgae for biodiesel production, production of butanol from biomass with help from acetobutylicum, etc. - where more is known about the extraction efficiency and process economics than the performance of the fuel itself. Perhaps the new proposals will siphon some research out of the biotech. community in the near future.



Like the EU, the USA also has a biofuel-consumption target set for 2022, by when it requires that 36 billion gallons of renewable fuel be mixed with transport fuel, up from the 9 billion gallons mandated by 2008. More specifically, under the Energy Independence and Security Act (EISA) of 2007,

  • RFS program to include diesel, in addition to gasoline;

  • Establish new categories of renewable fuel, and set separate volume requirements for each one.

  • EPA to apply lifecycle greenhouse gas performance threshold standards to ensure that each category of renewable fuel emits fewer greenhouse gases than the petroleum fuel it replaces.


(The underlined bit's what the EU has now included in its policies.)

However, a US National Research Council report released on October 24 found that if algal biofuels, second-generation fluids whose energy capacity lies between petrol’s and diesel’s, have to constitute as much as 5 percent of the country’s alternate energy mix, “unsustainable demands” would be placed on “energy, water and nutrients”.

Anyway, two major energy blocs – the USA and the EU – are leading the way to phase out first-generation biofuels and replace them completely with their second-generation counterparts. In fact, two other large-scale producers of biofuels, Indonesia and Argentina, wherefrom the EU imports 22 per cent of its biofuels, could also be forced to ramp up investment and research inline with their buyer's interests. As Gunther Oettinger, the EU Energy Commissioner, remarked, “This new proposal will give new incentives for best-performing biofuels.” The announcement also affirms that till 2020, no major changes will be effected in the biofuels sector, and post-2020, only second-generation biofuels will be supported, paving the way for sustained and focused development of high-efficiency, low-emission alternatives to fossil fuels.

(Note: The next progress report of the European Commission on the environmental impact of the production and consumption of biofuels in the EU is due on December 31, 2014.)

Friday, 9 December 2011

Tackling Redhouse gas emissions

The 17th conference on the United Nations Framework Convention on Climate Change claims to have invited delegates from all member states of the UN to discuss on and arrive at a consensus toward the future of the Kyoto Protocol, which expires in December next year. However, recent trends amongst participants have shown that the principle negotiating blocks are the USA, the EU and the BRICS nations: Brazil, Russia, India, China and South Africa. Unfortunately, trends have also shown that no consensus on anything is reached until the last moment of the conference, thanks primarily to the lack of commitment each nation is willing to put up.

The Kyoto Protocol, signed in 1997, put a binding legal agreement upon developed nations (or, as it calls them, “annex 1 nations”) to cut down on their emissions or face UN-imposed sanctions. As frail as the embargoes may themselves sound, most developed nations with the exception of the USA ratified the agreement and began the arduous process of, to use an appropriate mathematical term, “leaning” down. A recent study by The Economist has emerged that shows how Czechoslovakia cut down its emissions by as much as 30 per cent. But that misses the point: the focus has since shifted away from every country to a certain group of countries, each with its own brand of interests.

The successor to the Kyoto Protocol, which will take effect from 2015 onward if it is formulated in 2011 or 2012, will have to accommodate the emissions of developing nations. Before the Kyoto Protocol came into effect, more than half of all global emissions came from developed nations; today, 58 per cent of all emissions are by developing nations. This means that a binding legal agreement will have to lean down the USA, the EU as well as the BRICS bloc, and therein lies the rub.

The USA is willing to accede to such an agreement if the same limits and sanctions are imposed on all countries that ratify it, shirking away from a West-specific clause that will jeopardise its capacity to keep the Chinese, Indian and Brazilian economies in check. India, in turn, has a different concern altogether. The average emissions per capita per annum of an Indian are a mere 1.2 tonnes, and with more than 400 million of its people still living in poverty, India’s needs are more pressing than America’s because its need for development is righteously immense. Therefore, leashing both the USA and India with the same amount of rope makes no sense. However, the prospect of finally leashing the USA has the EU excited, which makes the BRICS’s resistance all the more important, all the more precarious.

Because of the significant unified bargaining power of the BRICS block, the biggest threat it could face is one of its members breaking rank, which the head of the Chinese delegate almost did. On December 6, Mr. Xie Zhenhua announced that China was ready to participate in a treaty that would legally bind both developing and developed nations, an announcement that is sure to have sent a shiver down the convention’s spine. However, before anything radical materialized, Mr. Zhenhua clarified that China was willing to participate in a treaty that would bind only the developed nations even though developing nations would be a part of it.

What is he trying to say? That the developing nations will evaluate the greenhouse gas emissions of the developed nations? Or that China was prepared to break away and form its own bargaining front? Or was it simply a case of reckless overstepping that was quickly mitigated by the realization that China would have nowhere to go from thereon? Greenhouse gases can step aside: it seems a blast of hot, red air demands some attention now.