To Bury CO2 or Recycle It While not the most powerful of the greenhouse gases produced by humanity, CO2 is certainly the most prevalent, if you don't count water vapor. To a very large extent, addressing climate change depends on three main strategies for dealing with the excess CO2 our activities emit: avoiding its creation by switching to other energy sources, such as renewables or nuclear power; capturing and storing it in trees, other vegetation or underground; and recycling it into useful fuels and products. Most of the work to date on the third option has focused on biofuels, which employ photosynthesis to convert CO2 into vegetable oils or fermentable sugars. However, another strategy now attracting interest involves non-photosynthetic pathways for turning CO2 back into hydrocarbons. If practical, this approach has much to recommend it, though the laws of Thermodynamics suggest it will always require more energy than the resulting fuels can deliver when used. A recent conversation with the CEO and CTO of Carbon Sciences, Inc., a start-up pursuing CO2-to-fuel technology, shed some interesting light on the subject.

The magnitude of global emissions of CO2 makes managing them a daunting prospect. Carbon Capture and Sequestration (CCS), which creates an artificial carbon cycle, has garnered much political and financial support in the last year, though it is still in the development stage and faces significant hurdles. CO2-to-fuel conversion offers another interesting option, because it could either work in parallel to CCS to enhance the reduction of emissions from fossil-fuel power plants and other stationary sources, or in competition with sequestration as an outlet for the captured CO2 from such facilities. If the resulting synthetic fuel displaced a like quantity of petroleum, natural gas or coal, the effect on the atmosphere would be largely equivalent to CCS and likely better than conventional biofuels, which appear to result in substantial non-combustion releases of CO2 and other GHGs. Fuels produced from recycled CO2 could finesse many of the NUMBY concerns about CCS while beating corn ethanol and some biodiesel on overall "green-ness" and compatibility with existing fuel infrastructure and transportation fleets. So why aren't we already doing this?

The answer is simple. When we burn the carbon compounds found in fossil fuels, they produce CO2 and a specific quantity of energy that is unique for each molecule. Turning CO2 back into the original fuel compound requires the input of that same amount of energy--that's from the First Law of Thermodynamics--and in practice a bit more, thanks to the Second Law. Chemists have known for a long time that CO2 could be converted into fuel and chemicals, but outside the laboratory this wasn't regarded as useful, because it inherently consumed more energy than it could return. Biofuels get caught up in this same conundrum, though in their case much of the energy required is supplied by the sun, rather than from other fuels and energy inputs we must produce. So I was quite intrigued when I received an email inviting a conversation with the CEO of Carbon Sciences, the start-up I mentioned earlier, which claims to have solved this problem using "biocatalysts", nanotechnology, and a unique multi-step process.

The company's website includes animation showing how this would work, though from my perspective it omits the key factor: where does the energy come from to drive the process? Catalysts and enzymes can reduce the threshold for the reaction to take place and improve its speed--the reaction kinetics, in engineering terms--so that what would otherwise take nature years or millennia to produce can be accomplished in a commercially-practical interval. However, catalysts can't alter the basic energy requirement of the reaction. What is the source of that energy?

My discussion with Carbon Sciences' CEO Byron Elton and Chief Technology Officer Naveed Aslam, Ph.D. assuaged my immediate concern that this was yet another perpetual motion machine dressed up with technical jargon and fancy graphics. They struck me as pragmatic and realistic about the challenges they face, though with the customary optimism required for entrepreneurial risk-taking. Dr. Aslam clarified that their process for converting CO2 to methanol for later conversion into hydrocarbons or petrochemicals involves a hydrogen-and-energy carrier molecule that must be regenerated from a "sacrificial substrate." That substrate effectively provides the energy required for uplifting the CO2, which is at a very low energy state, and acts as the fuel source for the whole sequence. The value of the entire CO2-to-fuel process in energy, economic and emissions terms thus hinges on the characteristics, cost and supply potential of this energy-donating material.

The process developed by Carbon Sciences can apparently use a variety of substances for this purpose, which is fortunate. Initial laboratory tests apparently involved glucose, a commercially-available sugar, but the company is now using another, undisclosed feedstock because of their concerns that glucose supplies couldn't keep up with a large-scale CO2-to-fuel industry without affecting food prices. Dr. Aslam indicated that in the long run they would likely use a mineral-based compound that was widely available. Without knowing the specific chemical involved, it's impossible to assess the overall energy balance, lifecycle emissions, or usefulness of the process, but I at least came away with a sense that Mr. Elton and Dr. Aslam understand the constraints involved very well.

And while the global supply of CO2 certainly looks large enough, it has to be provided in the right form: highly concentrated and free of contaminants that could degrade their catalyst or retard the reaction rate. That is a very different requirement from biofuels that extract their CO2 from the air, and it would put CO2-to-fuel in direct competition with carbon sequestration and enhanced oil recovery, which also effectively produces incremental fuel from CO2. It's not obvious to me which technology will advance the fastest, offer the largest overall CO2 reduction, or the most attractive economics. Markets are usually the best way to sort that out, if given the right signals.

Nor are Carbon Sciences the only ones working on this problem. A team at Sandia Laboratory has been developing a "Sunshine to Petrol" system using CO2 and concentrated sunlight, while the new Advanced Research Projects Agency-Energy (ARPA-e) is looking into a variety of novel ways to convert CO2 into fuel without photosynthesis.

It's important to note that Carbon Sciences' conversion technology is still at an early phase of development--lab-scale, rather than demonstration-scale. "Milliliters per day" won't solve our energy or emissions problems, but if this can be scaled up to many thousands of barrels per day with a cheap and readily-available source of chemical energy and a suitable supply of CO2, it has the potential to deliver fuels that are 100% compatible with our current infrastructure and vehicle fleets. That's a big advantage, and it would certainly explain the interest that Carbon Sciences has apparently been getting from large energy firms. I was told that Carbon Sciences hopes to develop a commercially-attractive package by the third quarter of 2010 and are exploring a "strategic partnership" to take the process--and the company--to the next phase. They have also applied for DOE technology funding under the category of "Innovative Concepts for Beneficial Uses of CO2". I will be watching their progress with great interest.

Since I don't expect to post again until next week, I'd like to wish my readers a Merry Christmas and happy Boxing Day.

I also have a housekeeping matter to bring to your attention. Haloscan, the comment system I have used since 2004, is being discontinued. I must decide by Monday whether to switch to Haloscan's successor, Echo, use Blogger's comment feature, or find another comment platform. Although I will do my best to ensure the migration of the many thousands of comments you've left here, I can't guarantee it. If there are any you'd like to refer to again, I encourage you to copy them to another medium.

Labels: alternate fuels, biodiesel, biofuel, carbon sequestration, ccs, CO2, emissions

  ¶ 12:27 PM

  Climategate: Mountain or Molehill? While the Copenhagen delegates, which now include many heads of state, wrangle about transparency and the size and funding of the pot of money that will be required to assist the developing world in mitigating its emissions and adapting to further climate change, another debate over transparency is brewing. Its range of potential outcomes is wide. At one end it entails a collision between science and the law--two less compatible spheres would be hard to imagine--over the issues raised by the emails and data leaked from the University of East Anglia. At the other extreme concerns about "Climategate" will gradually fade from our consciousness in the manner of Tiger Woods's fall from grace, but perhaps not without raising some interesting questions along the way.

To appreciate how matters might unfold, check out an op-ed in today's Wall St. Journal from Dr. Patrick J. Michaels, a climate scientist on the receiving end of some of those barbed emails revealed by the leak. In addition to calling into question the neutrality of the peer review process that underpins the science upon which the Copenhagen talks and any agreement that comes out of them are based, he provides a hint at the form that future legal challenges to the enforcement of such an agreement, or of rules arising from the EPA's recent endangerment finding, might take. These allegations are serious, particularly when you consider that Dr. Philip D. Jones, until this month the head of the Climate Research Unit at East Anglia, was also one of two Coordinating Lead Authors of Chapter 3 of the Fourth Assessment Review of the Intergovernmental Panel on Climate Change (IPCC.) That chapter (very large file) deals with actual observations of "surface and atmospheric climate change", including the temperature data. That makes him a key gatekeeper of the consensus.

I only ran across that connection, because I've been following a side debate concerning how actual temperature measurements at thousands of locations around the world over the last century have been tabulated. The barely civil online point-counterpoint between an anonymous blogger at The Economist and the proprietor of a well-known climate skeptic website gives a flavor for this complex topic. Along the way I was surprised to learn how frequently the actual temperature readings are adjusted, interpolated, and in some cases discarded. This involves many assumptions that I'm not qualified to question, though I am left with the conclusion that recent temperature trends fall into much the same category as the pre-measurement historical temperatures reconstructed from proxies such as tree rings. In other words, the familiar temperature trend graphs reflect mainly analysis, not primary data. That puts us all in the position of having to trust that this analysis was done properly and neutrally, and unfortunately that is precisely the trust that the leaked emails have undermined.

In a recent New York Times op-ed, Stewart Brand, an iconic figure and an acquaintance from my former work with Global Business Network when I was at Texaco, proposed a useful taxonomy for our reactions to climate change. He suggested four categories into which those with an opinion on the subject fall: Denialists, Skeptics, Warners, and Calamatists. The views of those in the first and last categories aren't likely to alter much, no matter what science and further evidence reveal about the climate. What they see reinforces pre-existing mindsets. The Skeptics and the Warners, on the other hand, are part of a legitimate scientific debate and are both amenable to adapting their views to new evidence.

I consider myself mainly a Warner in Stewart's terms, having consistently expounded the risks of climate change both in this blog and elsewhere, but I am still willing to give both sides of the argument a fair hearing. I want to see Climategate addressed openly and objectively. If the science turns out to be flawed because of bias and improper manipulation, we need to know that and correct the flaws. If the actual science is unaffected, but the means by which it has been conducted requires reform, then we need to address that as well, because if we don't the public's confidence in its findings won't be high enough to act on them. And I'd rather see this hashed out in an open scientific forum held by a body such as the AAAS and involving many disciplines outside climate science as a true jury of peers, than to see it resolved by litigation, which is where this all could be headed if scientists respond by shrugging it off or circling their wagons.

Labels: climate change, climategate, cop-15, copenhagen, global warming

  ¶ 10:31 AM

  The Other Countdown I missed commenting on the latest round of oil deals in Iraq, which could see that country's output quickly double and eventually quadruple, causing no small amount of anxiety within OPEC. It's looking increasingly likely that the world may need that oil sooner rather than later, though. While the backdrops of photos from Copenhagen display the "tck tck tck" mantra symbolizing the conference as our last, best chance to avert catastrophic climate change, we shouldn't forget that another clock with a shorter timeline is also ticking down on our last chances to prevent Iran from developing nuclear weapons.

Business leaders are often advised not to let the urgent drive out the important. Although climate change has been billed as having both attributes, so do Iran's nuclear ambitions, and their implications in the next decade take urgency to a higher level. Yesterday's Washington Post featured a chilling analysis of the progress Iran has been making on fronts other than the Uranium enrichment that has attracted so much attention. This includes a leaked memo from the International Atomic Energy Agency assessing Iran's capabilities and another purportedly from inside Iran showing that the government is working on a "neutron initiator." If these assessments are right, then the controversial National Intelligence Estimate of 2007 placed far too much faith in indications that the regime had decided to cancel work on a warhead. Our subsequent patience with them--and with our Security Council partners--has provided Iran with crucial time in which to advance its goals.

While we were in a poor position to ratchet up the pressure sufficiently in 2007 or 2008, when Iran's oil exports made the difference between high oil prices and a crippling oil shock, that constraint disappeared last fall. The combination of OPEC's current spare capacity of at least 6 million barrels per day and the prospect of Iraqi output increases that could dwarf Iran's exports has largely neutralized the threat of an Iranian embargo, perhaps permanently.

Now, it's still possible that the visible parts of Iran's nuclear efforts are a sham mounted mainly for our benefit, similar to the double feint concocted by Saddam Hussein, in which he claimed not to be doing something while doing just enough behind partially-closed doors to make that claim look false. In retrospect that strategy made a certain amount of sense for Iraq, which after its defeat by Coalition forces in the Gulf War could not have defended against a conventional attack from the larger neighbor it had fought to a standstill a decade earlier. However, it makes little sense for Iran, which already has powerful defenses and a wide array of weapons and allies with which to retaliate in case of an attack by the US, the only power that could seriously threaten it at this point.

If the op-ed in the same issue of the Post is correct about the difficulties of mounting effective deterrence once Iran has the Bomb, then we don't have much time left to exercise the remaining diplomatic and economic options in our playbook. That means assessing the positions of Russia and China with a gimlet eye and determining for ourselves whether they would ever sacrifice their trade and security connections with the Islamic Republic, in order to forestall nuclear developments that they likely see as not aimed against them in any case. As weak as our hand looks now, it will only get worse later. In the context of this countdown, today's relatively high inventories of crude oil and refined products look like a very good thing.

Labels: embargo, iran, Iraq, nuclear, nuclear weapons, opec

  ¶ 11:49 AM

  Cash Is King, Even at Copenhagen Although apparently brief, the suspension of the Copenhagen climate conference after a walkout by the Group of 77 developing countries confirms that the talks are as much about money as about healing the world's climate. It's not just that the G77 wants the Kyoto limits on the emissions of developed countries enforced, while leaving their own emissions uncapped; it also wants the developed world to kick in sizable sums--much bigger than the 2.4 billion Euros per year offered by the EU--to cover the improvements in energy efficiency and renewable energy that would enable them to tackle the growth of their own emissions. There's a solid argument there, though it is not the guilt-based logic of "carbon debt" that I explored a few weeks ago.

An op-ed in the Saturday Wall St. Journal got me thinking about this issue over the weekend, before the G77 delegates walked out of the COP-15 session in Copenhagen. This commentary by a Berkeley physics professor and author of "Physics for Future Presidents" was bursting with enough ideas to stimulate a dozen blog postings, but its key insight was that even the massive cuts in US emissions proposed for mid-century would be of little or no consequence in curbing global emissions that are increasingly concentrated in the developing world. He suggests that the emissions of developing countries will count the most, and that these countries will only adopt emission cuts that provide clear economic benefits to them. In that context and under the current Kyoto-based framework, the strongest argument for imposing deep cuts on the US and EU is not the reduction of our own emissions--which would have a minimal direct impact on the expected increase in the earth's temperature--but the role of these cuts in creating a market for offsets generated by investments in emission-reduction projects in the uncapped developing world via the Clean Development Mechanism, or CDM. Unfortunately, this logic has already led to notable distortions of the intent of the CDM.

There has to be a better way. As Dr. Muller notes, "A dollar spent in China can reduce CO2 much more than a dollar spent in the US." Yet US voters won't countenance providing that dollar out of guilt, nor will they acquiesce to a scheme that makes China and other developing countries more competitive at their expense. Paradoxically, even domestic measures such as European feed-in tariffs and the proposed federal Renewable Electricity Standard embedded in the Waxman-Markey climate bill could create such an outcome, if Chinese and Indian green technology firms come to dominate developed country green energy markets. There are already indications of this happening in the German solar market.

Instead of the technology transfer we've been talking about for more than a decade, what may be needed is a new mechanism that actually creates markets in the developing world for clean energy hardware and know-how produced in the developed world, so that these projects create jobs and wealth in the US and EU, rather than threatening them. I'm not sure precisely what form such a deal might take, but at a minimum it should incorporate both open access to developing country markets and uniform legal protection for the physical and intellectual property of the developed-country companies making these investments.

The best thing that could come out of today's disruption at Copenhagen would be the cancellation of the big heads-of-state photo-ops planned for the final days of the conference and a determination to put the delegates back to work crafting a new agreement that creates the right recipe for focusing the lion's share of climate investments on the rapidly growing emissions of the third world, rather than on the shrinking emissions of the EU and the plateaued GHG output of the US. That would be something worthy of bringing the world's leaders together to sign.

Labels: cdm, cleantech, climate change, cop-15, copenhagen

  ¶ 10:36 AM

  Oil's Place in a Kerry-Lieberman-Graham Climate Bill The inclusion of support for expanded US oil and gas drilling in a Senate climate proposal issued yesterday is bound to puzzle many readers. If the emissions from oil are responsible for a major portion of human-induced global warming, how can increasing our production of it contribute to reducing US emissions, as the three Senators involved suggest? The answer requires a clear understanding of where most of the emissions in the oil value chain take place. It also invokes a broader view of climate and energy security that recognizes that oil is not as close to being replaced by renewables as we'd like to think, and that in the absence of higher domestic output, our oil imports could continue to increase, with consequences--and emissions--beyond our control.

The proposed framework from Senators John Kerry (D-MA), Joe Lieberman (ID-CT), and Lindsey Graham (R-SC) was released in the form of a letter to President Obama, outlining the parameters of a climate bill that would include emissions caps and market mechanisms--presumably cap & trade--plus support for nuclear power, clean coal, and oil and gas drilling, along with other provisions to protect consumers and promote job creation by helping manufacturers become more energy-efficient. In the absence of its details, the proposal looks broadly similar to other climate measures, including Waxman-Markey and Kerry-Boxer, but without treating domestic producers of conventional energy as undesirable elements. The trio behind this initiative is also interesting, adding Sen. Lieberman's long-standing credibility on cap & trade (3 previous Senate bills) and the bi-partisan participation of Sen. Graham.

To understand what support for domestic oil drilling is doing in a climate bill, however, you have to look at oil's continuing role in our primary energy mix and the distribution of emissions associated with its production, refining and use. Start with primary energy, with oil accounting for 37% of last year's total US energy consumption, in the form of 19.5 million barrels per day (mbd) of crude oil and refined products. Biofuels can't replace oil anytime soon, and even at its maximum extent in 2022, the entire Renewable Fuels Standard would only displace the energy equivalent of about 1.4 mbd of oil, or roughly 7% of current consumption. Nor can wind and solar power do the job; they will be fully engaged in reducing the average emissions of the US electricity mix, only about 1% of which is generated from oil. Some of that green power will eventually find its way into electric vehicles, which do displace oil, though these aren't likely to make up more than a small fraction of the US car fleet for decades. In any case, the emissions from biofuels and electric vehicles may not be that much less than from oil use.

The inescapable conclusion is that the US will continue to burn oil for a long time. The quantities will decrease as efficiency and substitutes ramp up, but not fast enough to back out all of the oil we import for a very long time, let alone all petroleum from all sources. And that's where the energy security aspects emphasized by the three Senators come in; if we're going to need oil for years to come, as much of it as possible should be produced here.

Then there are the emissions from that oil. When assessed on a full lifecyle basis, most of the emissions from petroleum occur when it is used, not when it is produced. That's even true for oil derived from oil sands, which entails significantly higher upstream emissions than for the conventional oil output this framework would promote. Depending on the crude oil source and the products involved, well-to-wheels analysis suggests that 80-90% of emissions occur at the point of use, with production, transportation and refining accounting for the much smaller remainder. As a result, the point of maximum leverage on the emissions from the oil value chain is not exploration & production, which accounts for only a few percent of emissions, or refineries that are already 90% efficient, on average, but the cars and other vehicles and devices in which we consume it. The most effective strategies for reducing oil-based emissions thus involve vehicle dieselization, hybridization, downsizing, and other efficiency measures, along with non-efficiency conservation, including carpooling, telecommuting, virtual meetings, etc.

Moreover, since climate change is inherently global in nature, it doesn't matter whether the upstream emissions associated with oil occur in the Gulf of Mexico, the Persian Gulf, or anywhere else, except to the degree that domestic conventional oil might displace oil from higher-emitting unconventional sources elsewhere. But while the sources of the oil and refined products we use are largely irrelevant from a climate change perspective, they are most certainly relevant to our energy security. Increasing domestic oil production would pay big dividends in tax revenue, job creation, and the reduction of both our trade and fiscal deficits. (Disclosure: My personal investment portfolio includes oil stocks.)

The Houston Chronicle quoted Senator Graham as saying, "There will be no bill with Lindsey Graham's vote if it doesn't have meaningful offshore and onshore exploration." If he represented Alaska, Louisiana or Texas, you might attribute that sentiment to a desire to protect his home state's energy interests. Instead, it reflects a practical reality that seems to have escaped many in the administration, who appear to equate all oil from all sources with environmental and economic ills, rather than realizing that while we all know we need to use less oil for many reasons, that doesn't preclude us from using more of the enormous oil endowment with which the US has been blessed. If we use it wisely, domestic oil can provide a necessary bridge to the clean energy future we all want, and in a manner that is consistent with reducing global greenhouse gas emissions. I don't know whether these three Senators have found the recipe for breaking the Senate impasse over climate change, but this proposal could represent just the kind of grand compromise on energy and the environment that we have needed for a long time.

Labels: cap-and-trade, climate change, diesel, energy independence, hybrid, offshore drilling, oil production, waxman-markey

  ¶ 2:12 PM

  Reconciling Emission Baselines As the nations represented at Copenhagen debate proposals for reducing their absolute emissions or carbon intensity, I was reminded that we shouldn't just focus on the percentages being offered, but also on the reference year emissions on which these proposals are based, since these aren't necessarily comparable. That's particularly true for the US and EU, which have consistently referred to 2005 and 1990 base years, respectively. This distinction is crucial in understanding how much of what each party might commit to has already been achieved and how much remains to be accomplished.

Start with the EU, which has proposed a reduction of 20% versus its 1990 emissions levels. Based on a recently-issued report by the European Environment Agency, the 27 countries constituting the European Union today have already reduced their emissions by 10.7% as of last year, compared to 1990. According to this report their collective emissions in 2005 were 9.3% below 1990, so that 20% figure for 2020 really translates to roughly 12% below 2005--and only a bit more than 10% below where they are now--which is substantially less than the 17% reduction that the US has put on the table. However, the US proposal should also be put into context, because of the divergent emissions trends of the two regions since 1990, which was the base year for the Kyoto Protocol that has guided EU policy in the intervening years, but which the US never ratified.

Between 1990 and 2005 total US greenhouse gas emissions increased by 16.5%. After counting net emissions including all sources and sinks--mostly natural processes such as forestry that absorb these gases--the increase was about 14%. So either way, that 17% cut that US negotiators were authorized to take to Copenhagen is really 1990 less about 3-5%. At the same time, 17% vs. 2005 is no slam dunk, even if it appears that the recession helped ax 2% of our emissions as of last year, and this year could be down a bit more. A recovering economy will use more energy and emit more GHGs, even if only from the work commutes of millions of re-employed people.

While I don't expect nearly as much controversy over the choice of baseline years as surrounded the Kyoto negotiations, 1990 and 2005 represent very different worlds, with the former largely pre-dating the collapse of the high-emission Soviet bloc economies, giving rise to all those Russian "hot air" allowances and a major portion of Germany's cuts post-reunification, along with a big shift in UK power generation away from coal and toward natural gas. Although the EU has certainly instituted comprehensive policies to reduce its emissions, including a cap on industrial emissions and a union-wide Emissions Trading System, a large chunk of the reductions for the current membership were achieved before any of these policies went into effect, through the rationalization of the inefficient economies of formerly-communist Central and Eastern Europe. 1990 looks even less relevant to the current economies of large developing countries like Brazil, China and India.

On the other hand, while 2005 has much to recommend it as probably the most recent year for which fully-audited emissions data are available globally, it also represents nearly the high-water mark of a world of easy money and massively-globalized supply chains that may never return in quite the same form. Choosing it might also appear to let the US off the hook for a decade of relative inactivity on climate change, though that ignores the fact that our actual emissions have grown by much less than the 33% business-as-usual increase that was expected in the late 1990s, presumably because of the discipline imposed by the steadily-rising energy prices that accompanied our bubble economy of recent years.

Whatever emerges as the baseline for an agreement or framework coming out of Copenhagen, it ought to be a single year that provides both ease of comparison and a reasonable congruence with the realistic starting point for any actions that countries will commit to undertaking in the years ahead.

Labels: climate change, cop-15, copenhagen, emissions, EU, greenhouse gas, kyoto

  ¶ 1:43 PM

  The Copenhagen Scenario It wasn't supposed to turn out this way. When delegates to the climate conference in Bali in December 2007 agreed on a two-year roadmap culminating in Copenhagen this week and next, they were widely understood to be buying time for the US to elect a new administration committed to much stronger action on climate change, for the remaining scientific uncertainties to be resolved, and for the large developing countries to be brought around to make binding commitments regarding their own growing emissions. Yet while progress has been made on all three fronts, the changes over the last couple of years have manifested in ways that still don't quite deliver the scenario necessary to set up Copenhagen to deliver on all of Bali's promises.

As I noted during the run-up to last year's election, both major US political parties chose nominees who had made climate change a central issue of their campaigns. Neither an Obama administration nor a McCain one was going to look much like its predecessor on this issue. Yet we've also seen that the partisan differences on climate change reflect deeper underlying concerns about the impact of greenhouse gas regulations on parts of the economy that aren't evenly distributed across the states, some of which rely much more than others on the production or consumption of the highest-emitting fuels, particularly coal. Those economic concerns loom larger after what we've been through in the last year or so. Together with the inability of recent Congresses to refrain from festooning every piece of major legislation with grab bags of peripheral regulations and pork, this resulted in a badly flawed House bill on cap and trade--and much else--and a Senate counterpart that is starting to look dead on arrival. With President Obama needing to arrive in Copenhagen armed with more than empty promises, we now get an anything-but-coincidental Endangerment Finding that could end up reducing emissions in the most costly way imaginable.

Then there's the science and even the climate itself, which has hardly cooperated in the two years since Bali. While this decade is still on track to be the warmest on record globally, 2008 was the also coolest year since 2000, and despite some rebound 2009 won't set any new records. And just when the science was looking settled, the emails and computer files hacked--or leaked--from a major climate research center in the UK have raised concerns about the peer review of papers questioning the consensus view, and about the processing of raw data for the "climate proxies" used to recreate historical conditions before the century or so that they have been observed accurately--data that incidentally provide key inputs to the climate models predicting the temperature and other outcomes from steadily increasing levels of CO2 and other greenhouse gases in the atmosphere. The likelihood that the timing of this leak is no more coincidental than that of the EPA's finding doesn't alter the need for these questions to be assessed by someone besides the scientists whose work was involved.

Then there are the large, rapidly growing emissions from China, India and other developing countries, especially when changes in land use are taken into account. As I mentioned the other day, China's announcement that it would reduce the carbon intensity of its economy as it grows is a big first step, but it also falls into the category of things necessary, but not sufficient, to induce the US to commit to deep absolute cuts, particularly in light of polling that suggests the US public is less worried about climate change than it was when the economy was booming a couple of years ago--again, no coincidence.

When I return from my current travels I'll be watching the news from Copenhagen with great interest. I expect to post more on this subject, as developments warrant.

Labels: bali, climate change, copenhagen, waxman-markey

  ¶ 4:36 PM