The Climate Emergency Fast

On September 4th, an organization called the U.S. Climate Emergency Council is holding a 24-hour fast meant to further raise awareness about global warming. As such gestures go, it seems like quite an appropriate one. The burdens of climate change are likely to fall most heavily on the poorest people and there is good reason to believe that agriculture will be seriously affected. (See this post on C3 photosynthesis, for instance.) Participating in the fast could provide a visceral approximation of what a changing climate will mean for many people, while highlighting the moral importance of the issue.

As of now, about 800 people have signed up for the fast. It is being discussed – along with the broader context of climate change protest – over at Grist.

[Update: 10:47am] I think I am going to do this. As far as I know, it will be the first time I have ever gone 24 hours without eating anything. I will permit myself water only, though climate change may leave that in short supply also.

The ugliness of war

Artillery monument, Ottawa

Today’s Ottawa Citizen has an article about how the Canadian War Museum is being pressured to change some of the text in its Bomber Command exhibit. Veterans had complained that it makes them out to be war criminals. The text reads:

“The value and morality of the strategic bomber offensive against Germany remains bitterly contested. Bomber Command’s aim was to crush civilian morale and force Germany to surrender by destroying its cities and industrial installations. Although Bomber Command and American attacks left 600,000 Germans dead and more than five million homeless, the raids resulted in only small reductions of German war production until late in the war.”

The museum consulted four contemporary historians, after complaints from the National Council of Veteran Associations, and they each affirmed the accuracy of the text. Two of them, however, lodged some complaint about the tone employed.

All this strikes at one of the tough moral questions that arises when you treat war as the subject of law. If the London Blitz was a crime, surely the bombing of Berlin, Tokyo, and Nagasaki were crimes as well. The targeting of civilians was a crime committed by those who chose where the planes should drop their deadly cargo. The dropping of the bombs was a crime committed by those who followed the illegal orders. (See: this related post) Alternatively, one can adopt the view that none of these undertakings were criminal. I suspect that neither perspective is a very comfortable one for those who were involved, but it seems difficult to come up with something both different and defensible.

In the end, it seems wrong to give anyone the comfort of thinking they were on the ‘right’ side and this somehow excused what they did. Their actions are equally valid objects of moral scrutiny to those of their opponents, though they are much less likely in practice to be thus evaluated.

None of this is to say that all the combatant states in the Second World War had equally good reason to get involved, nor that there is moral equivalence between the governmental types in the different states. What is hard to accomplish, however, is the translation of such high level concerns into cogent explanations for why former Canadian strategic bombers should be honoured while Germans launching V2’s into London should not be. The generally unacceptable character of the intentional bombing of civilians is firmly entrenched in international law; as such, the sensibilities of current veterans do not warrant changing the text.

[Update: 30 August 2007] Randall Hansen, an associate professor at the University of Toronto, has written a well-argued editorial in the Ottawa Citizen attacking the museum’s decision to change the wording.

Afghan opium

The Senlis Council, an international policy think tank, has developed an alternative plan for dealing with Afghanistan’s record crop of opium poppies. Their Poppy for Medicine Project aims to address the global shortage in medicinal opiates (such as morphine) while also providing a sustainable basis for the Afghan economy. Providing poppies for legal medicinal purposes will offer an income alternative that does not fuel the illicit drugs trade. Romesh Bhattacharji, India’s former narcotics commissioner, has offered his support for the plan, citing the high incidence of cancer in the developing world and the lack of access to pain killers.

This year, Afghan opium exports were worth about $60 billion at street prices in purchasing countries; that is 6.6 times the total gross domestic product of Afghanistan. No wonder coalition forces have been having such a hopeless time trying to eradicate this production. Within Afghanistan, the trade is worth about $3.1 billion, though less than a quarter of that accrues to farmers. Village level schemes of the kind Senlis is proposing could increase that proportion, while decreasing the share that goes to organized crime, smugglers, and insurgent groups.

The idea that NATO troops can win hearts and minds in Afghanistan while simultaneously destroying the opium crop that is the basis for much of the economy has always been foolish. While I was in Oxford, the reality of this situation was privately acknowledged by a number of British military officers. If Afghanistan is to be in any way prosperous or secure by the time western forces eventually withdraw, a bit more intelligent engagement and a bit less dogmatism would be in order.

[Update: 28 August 2007] Here is a similar argument.

Parliament light show

On Parliament Hill, they put on a giant multimedia show twice a night. It is called Canada: the Spirit of a Country and it is both preachy and prescriptive. To anyone even slightly wary of government dictating values from on high, it seems a bit disturbing. It definitely seems absurd and over-done.

I hadn’t properly seen it before yesterday, when Emily and I happened across it. While the virtues it expresses are generally admirable, the delivery is incredibly Orwellian. Between psychedelic bursts of light projected across the front of Parliament, it plays videos and expounds in both official languages on the virtues of diversity and cultural exchange, peacekeeping, and the like. It’s like an over-the-top ‘Part of our Heritage’ commercial, though it seems a lot more disturbing. While the message may be an innocuous one, the propaganda approach is off-putting and the overenthusiastic promotion of Canada seems very much like a case of too much effort.

If you ignore the words, the light show itself is quite dramatic, though also profoundly discordant. It is very odd to see huge spinning abstract purple shapes projected all across Parliament, suddenly replaced with a pattern that looks like the razzle dazzle ships of World War I.

Standing within 50m of the war memorial, one might hope that we have moved beyond nationalism. At an aesthetic level, one might at least hope that we have moved beyond the kind of crude, half-deluded, and self-serving nationalism that the light show seems to represent.

The trouble with jets

Giant spider

Air travel is one of the trickiest ethical issues, when it comes to climate change. In most situations, the difference between a high carbon option and a zero carbon alternative is essentially a matter of cost. If we are willing to spend enough, we can replace all fossil fuel power with renewables. We can get electricity, heat, ground transport, and energy for industry from sources that do not contribute to climate change. Air travel is different. Even for one million dollars a ticket, there is no way to get someone from New York to London in about eight hours that does not release greenhouse gases. Likewise, there is no feasible way to capture those gases for later storage.

Let’s consider a series of propositions:

  1. Climatic science strongly suggests that allowing global greenhouse gas concentrations to rise beyond 500-550 ppm of carbon dioxide equivalent will have very adverse affects. These will be concentrated in the poorest states. It is highly likely that exceeding these limits will directly lead to large numbers of deaths, especially in the developing world. (See: these Stern notes)
  2. At present, per-capita emissions in developed states are far higher than those in developing states. Canada’s emissions per-capita are about twenty times those in India.
  3. Essential human activities, from heating to agriculture, produce greenhouse gasses.
  4. People have equivalent moral claims to the basic requirements of survival.

If we accept these claims, we find ourselves in a tricky spot. To stabilize the level of a stock, you need to reach the point where inflows are equal to outflows. Even if we ignore how global warming is reducing the ability of the forests and seas to absorb carbon dioxide, it is clear that such stabilization requires deep cuts in total emissions. At the same time, taking the last two points seriously means acknowledging that developing states do have the right to comparable per-capita emissions. As such, the only option that is fair and capable of stabilizing overall concentrations requires very deep cuts in developed states.

Aside from being inextricably linked to fossil fuels, modern air travel compounds the harm done by the burning of that kerosene. This is partly because of where in the atmosphere it is deposited. It also seems likely that jet aircraft affect clouds in ways that increase their impact on climate change.

Imagining a world stabilized at 500 ppm, with reasonably similar per-capita emissions for all states, it seems quite impossible that there can be air travel at anything like contemporary levels. It is possible that some miracle technology will allow high-speed flights to occur without significant greenhouse gas consequences, but no such technology is even within the realm of imagination today.

As someone who has long aspired to travel the world, this is a very difficult conclusion to reach. It now seems possible that air travel bears some moral similarities to slavery. Before people become overly agitated about the comparison, allow me to explain. Just as slavery was once a critical component of some economies, air travel is essential to the present world economy. Of course, economic dependency does not equate to moral acceptability. If our use of air travel imperils future generations – and we are capable of anticipating that harm – then flying falls into the general moral category of intentional harm directed against the defenceless. After all, future generations are the very definition of helplessness, in comparison to us. We can worsen their prospects by fouling the air and turning the seas to acid, but they will never be able to retaliate in any way. (See: these Shue notes)

While I personally fervently hope that some solution will be found that can make continued air travel compatible with the ethical treatment of the planet, nature, and future generations, I must also acknowledge the possibility that people in fifty or one hundred years will look upon us as sharing some moral similarities with plantation owners in the United States, prior to the civil war.

Al Gore in a nearby park

In a public park up the road from here, a public screening of An Inconvenient Truth is ongoing. It’s a bit amusing that this should occur tonight, which is far and away the coldest night I have experienced since arriving in Ottawa. Leaving the office at about 6:40pm tonight, it was the first time I have gone through that double set of doors to find the air outside cooler than the air inside our twenty-eight story tower.

You have to wonder what the wider significance of growing public awareness about the climate change issue is. If it will require massive sacrifice to deal with, there is a reasonable change that Monbiot’s assertion is correct:

We wish our governments to pretend to act. We get the moral satisfaction of saying what we know to be right, without the discomfort of doing it. My fear is that the political parties in most rich nations have already recognized this. They know that we want tough targets, but that we also want those targets to be missed. They know that we will grumble about their failure to curb climate change, but that we will not take to the streets. They know that nobody ever rioted for austerity.

Thankfully, it does seem likely that the early stages of mitigation will be relatively painless and will carry corresponding benefits in terms of reduced dependence on foreign oil and reduced air pollution. It is when things really start to bite that the resolution of voters and law-makers will really be tested.

McIntyre and NASA data

SAW Gallery, Ottawa

There is a lot of talk in the media about how Steve McIntyre – an amateur scrutineer of climate statistics – found an error in data released by NASA. Specificically, it was mistankingly believed that data that had not been corrected for urban heat effects had been. This data pertains only to the United States and the correction implies that about 0.15 ºC of the observed warming there was just a statistical error. In itself, this would not get much attention. What does get attention is that this changes the rankings of the hottest recorded years in the United States. Rather than 1998 being the hottest recorded year in the United States, 1934 now wins. Many news sources are treating this data revision as though it demonstates a serious flaw in the overall quality of our climate understanding.

The Fourth Assessment Report of the Intergovernmenal Panel on climate change is based on a far broader collection of data than just NASA data pertaining to just the United States. As such, their overall conclusion that is barely affected by this change. Likewise, the worldwide figures for hottest years still cluster in the last decade. The report’s Summary for Policy Makers explains:

Eleven of the last twelve years (1995–2006) rank among the 12 warmest years in the instrumental record of global surface temperature (since 1850). The updated 100-year linear trend (1906 to 2005) of 0.74°C [0.56°C to 0.92°C] is therefore larger than the corresponding trend for 1901 to 2000 given in the TAR of 0.6°C [0.4°C to 0.8°C]. The linear warming trend over the last 50 years (0.13°C [0.10°C to 0.16°C] per decade) is nearly twice that for the last 100 years. The total temperature increase from 1850–1899 to 2001–2005 is 0.76°C [0.57°C to 0.95°C]. Urban heat island effects are real but local, and have a negligible influence (less than 0.006°C per decade over land and zero over the oceans) on these values.

This information is based on a broad collection of sources including satellites and ground stations around the world. It also incorporates evidence from ice cores and other historical indicators of temperature and greenhouse gas concentrations. What the McIntyre situation demonstrates is the degree to which perceived anomalies are seized on by people with pre-determined agendas to either support or refute the overall climate change consensus. While the data is not a statistical threat to that consensus, it does have the ability to foster doubt in the general public and among policy-makers, especially when presented out of context.

Having people out there scrutinizing the data is excellent, and a good check against the proliferation of misleading information. At the same time, it is necessary to be rigorous in our thinking about how one new piece of information affects the overall picture. Likewise, it is important to remain aware of the degree to which individual agendas influence how information is processed, and what responses it evokes.

Cognitive dissonance

One of the odd things about reading The Economist recently is seeing the extent to which their commitment to reason and the impartial consideration of scientific facts is clashing with their long-held views about economic growth. So far, their considerations of how ecological issues – especially climate change – impact their core philosophy has been fleeting and confined to the margins. This article on air travel is a good example.

Imagine, however, that they played some of the ideas through. What would their next Survey on Business look like if they really accepted that mass air travel is climatologically and morally unacceptable?

Heat: How to Stop the Planet from Burning

Ottawa wooden sculpture

During the past two years, I have been reading about climate change for several hours every day. During that span of time, I have read dozens of books and hundreds of articles. Quite possibly, none were as thought-provoking as George Monbiot’s Heat: How to Stop the Planet from Burning. If you are at all serious about understanding the issue of global warming, it is essential reading. He may not be right (indeed, it would be far preferable for him to be wrong) but he will definitely make you think.

His project is an ambitious one. Having decided that global temperatures must not be allowed to rise by more than 2°C on average, he works out what that would mean for Britain. Since British emissions per capita are way above the world average, a fair system would require much heavier cuts there than elsewhere. Canada’s per-capita emissions are even worse.

Here is a smattering of what he says will be required by 2030:

  • A power grid dominated by renewables and natural gas plants with carbon capture and storage.
  • Dramatically, dramatically tightened building regulations – making most houses either ‘passive’ in their non-use of heating or cooling or capable of producing their heat and power from piped-in hydrogen, possibly supplemented by solar.
  • Most private automobile travel replaced by a buses or non-motorized transport, both within and between cities.
  • An end to cheap air travel: no more low cost flights, with massive total cuts in the number of both short and long-haul flights.

The last is the result of a complete lack of alternative technologies that can deliver the kind of emission reductions required. Even if all other emissions were cut to zero, growth in air travel would make that one sector break his total limit by 2030.

Suffice it to say, Monbiot is not in the main stream of this debate. The Stern consensus is that climate change can be dealt with at moderate cost. Even if Monbiot’s ideas are entirely possible, in terms of engineering, one cannot help but doubt that any political party in a democratic state could successfully implement them. The impulse to defend the status quo may turn him into a Cassandra.

In fifty years, it is possible that people will look back at this book and laugh. Alternatively, It may be that they look back on Monbiot as one guy who had approximately the right idea while everyone else (Gore and company included) were in denial. The answer seems to depend upon (a) whether emissions need to be cut as much and as quickly as he thinks and (b) how bad it will actually be if they are not. It is pretty easy to do the math on the first of those, at least for any desired greenhouse gas concentration or temperature change. The latter is harder to assess. Regardless of which proves to be closer to the truth, this is a book I wholeheartedly endorse for anyone trying to keep abreast of the climate change issue.

Sustainability and the Prius

Canadian Parliament at night

One way or another, the Toyota Prius. is a symbolic vehicle. For some, it symbolizes how saving the planet can be relatively painless, enjoyable, and hip. You still get the same basic thing (the ability to zip around in a car) but without the guilt and with the important ability to lord it over the less environmentally responsible. Alternatively, the Prius is a symbol for the superficiality of the environmental commitments most people are willing to make. Seen in this way, it reveals how environmentalism is mere tokenism in many cases.

There are two arguments here which frequently become confounded. One is a first-order question about the ultimate sustainability of different energy systems. Is it sustainable to run internal combustion cars using cellulistic ethanol? What about plug-in hybrids charged using big nuclear fission plants? The answers to these questions are ultimately knowable to a high degree of specificity. For any given level of technology, answering them is simply a matter of applying chemistry and physics. The uncertainty therefore lies in estimations about what will be technologically possible at X or Y time.

The second-level argument is much more heuristic and intractable. There is the fundamentally liberal belief that environmental problems can be tackled fairly painlessly through a bit of cleverness and some new hardware. This is a view that takes the Prius as a positive symbol. At the other extreme is the conviction that only massive sacrifice can generate sustainability. The vision in Fight Club of people in rags pounding strips of leather on an abandoned superhighway captures this, and adherents would surely dismiss the Prius as a pathetic fig-leaf.

The latter argument seems to generate a lot more heated discussion, largely because the real meat of analysis on the former question lies in territory where most people cannot hold their own (who reading this could really calculate the efficiency of an energy grid based on photovoltaics, or of an industrial process for ethanol production from cellulose?). The latter debate requires only a will to participate, though it may not do much to leave us with an understanding of which view of the Prius is justified.