Wednesday, April 30, 2008

Friedman - Dumb as we wanna be

NY Times columnist Thomas Friedman has a great op-ed on the farce that is US energy policy (I get the sense a book is coming). In addition to timely remarks on subsidies for wind and solar, he calls Clinton's and McCain's promise to cut the federal gas tax for the summer what it really is: political pandering.

Sadly, the phenomena is neither new nor unique to the US. This is what I wrote in a Globe and Mail op-ed about the 2004 federal election in Canada:

The disappearance of prominent environmental issues at election time is hardly a new phenomenon. In the battle for votes, everyone longs to appear green, but will not advocate any policy that might be perceived, correctly or not, as damaging to the voter's wallet.

This election in particular has fallen prey to the opportunistic notion that scoring a favourable headline in the morning paper on the issue of the day is more important than presenting an integrated vision for the country. The result is fragmented political platforms in which environmental issues are the big losers.

The high price of gasoline provides a perfect opportunity to promote the need for higher automotive fuel efficiency, more funding for public transit, and reduced smog in our cities. These are issues of interest to all Canadians; dealing with them would help reduce Canada's greenhouse gas emissions. Instead, the debate focuses entirely on which party can deliver lower gas prices.

The price of gas has doubled since I wrote that column. Yet outside of Obama (and maybe the Greens in Canada), the political response remains the same.

Sunday, April 27, 2008

The pine beetle and carbon cycle feedbacks

An important study from in last week’s Nature concluded that the mountain pine beetle infestation that have devastated the forest industry out here has also converted western Canadian forest from a carbon sink to a carbon source. In the simplest possible terms, the beetles kill the trees, decreasing carbon uptake (photosynthesis) and increase carbon loss (decomposition). This is not a new suggestion. The Kurtz et al. paper is, however, the most complete accounting to date.

A lot of people are labelling this a ‘positive feedback’ from climate change (e.g. like how warming melts sea ice, which reduces reflection of solar radiation, which accelerates the warming). The logic is that warmer weather promotes the beetle outbreak, which releases carbon from the forest, which further warms the climate.

The assertion appears correct. But be wary of the hyperbole. Not all positive feedbacks are made equal. There are only so many pines, the beetles can only do so much damage. At some point, they run out of trees to eat, and the infestation recedes. As the authors of the Nature study have said, the betters have almost eaten themselves out of house and home. And re-forestation initiatives could return the forests to being a carbon sink.

The type of positive feedback that should be included in carbon cycle assessments? Yes. Runaway positive feedback that will send the atmosphere to 1500 ppm? Probably not.

There is a sadly ironic policy twist to the beetle infestation. For one, the forests now might pump out more carbon than the entire BC economy, throwing a wrench into regional GHG reduction agreements. The Canadian government lobbied hard to include forest carbon sinks under the Kyoto process, under the expectation that our boreal forest would provide a big carbon credit and reduce the need to address emissions themselves. Safe to say, that stance has softened in recent years.

Thursday, April 24, 2008

Patience, my friends

It has been an unseasonably cool spring here in British Columbia. Frosts in the Okanagan Valley have damaged the fruit crops. Skiers are fuming that the ski areas are sticking to previously scheduled closing dates, despite ample snow depths.

On Saturday morning, I awoke to the sight of snow. The flurries caused much consternation in coastal city. Never mind that the snow was only a dusting, even by the the standard of this mutant, ever-green corner of Canada.

So, naturally, the questions came: "What happened to global warming?"
Reporting and blogging the breaking climate news - whether last month's climate data or the results of a new scientific study - without providing context distracts us from the massive body of scientific evidence supporting climate change and the observed long-term warming trend (and seven years is not long-term!). It also sets unrealistic expectations that every month will set a temperature record, that every new study will conclude climate change is more dangerous than the last study did.

Read More...

Friday, April 18, 2008

Signs your climate policy is weak

Chinese participant Su Wei [at Paris meeting on climate change] said it was good news that Bush was talking about emissions at all. But he added, "to take measures to slow down the increase in emissions is not enough." CNN

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Wednesday, April 16, 2008

US President Bush speaks about climate change

There is a lot to parse in today's speech, including more of this false dichotomy between emissions policy and technology policy (try the Ecogeek drinking game). I've included the full text after the bump. [Dot Earth has a breakdown of the speech]

US President's stated goal is to stop greenhouse gas emissions growth by 2025.

Let's put that the goal in perspective. If emissions continue to rise (from 2006 levels) at the rate since 1990 (0.88%/year), the U.S. 2025 emissions will be 8363 Mt CO2-eq or 36% above 1990 levels. If we assume a emissions grow at only half that rate, the 2025 emission will be 7691 Mt CO2-eq or 25% above 1990 levels. These are the blue lines in the graph.

The little green line? The US Kyoto target.

When US President Bush speaks about climate change - as he did at the APEC summit and the last G8 summit - the world is left arguing whether some action is better than no action at all. It is tempting to say the mere fact that the US President felt it necessary to deliver a speech on climate change and to announce new goals related to climate change could be seen as a step forward.

The problem here is that the step is so small as to be inconsequential, and it sets a dangerous precedent. Today's statement implies the US that by 2025 - almost 15 years later - the US will still be 35-46% off the old Kyoto target. Will think European countries will be happy? [That's a no] Does this sets a good precedent for China and India?

Read More...

Tuesday, April 15, 2008

Food prices and the use of corn

The rise in food prices is finally garnering serious attention from the media and from world governments. The latest NY Times piece has this precious quote from Senator Charles Grassley of Iowa:

“You make ethanol out of corn,” he said. “I bet if I set a bushel of corn in front of any of those delegates, not one of them would eat it.”

Never mind the fact that a bushel is more than 25 kg of corn, Sen. Grassley (in claiming that the diversion of corn for ethanol is not affecting food prices) rather accidentally describes the exact problem. We don't eat the corn. In the U.S., the majority of the subsidized crops corn and soybeans (~75% in our most recent look at the economic data) are used for animal feed. And it is the rise in demand for meat, together with biofuel demand, high oil prices and droughts overseas, that is driving up food prices.

The practice of shark finning

Last week, Andrew Sharpless wrote a Gristmill post about legislation before the US Congress that will tighten the restriction on selling shark fins. I was initially reluctant to comment, as the legislation is outside my area of expertise. But, as someone that has spent a lot of time in boats with indigenous fishermn in the tropics, I can say with confidence that we should support any effort to stop the practice of shark 'finning'. And not only for the obvious reason - the effect on shark populations and marine ecosystems - but because, from what I've seen, it can hurt the local fishing communities as well.

The one argument I've heard (in the Pacific, in Madagascar, and here at home) in defense of cutting off the fins and leaving the sharks to die is that the prized fins fetch a high price and provide the fisherman in impoverished areas with a solid source of income. My informal observations in the field - these are anecdotal comments, so should be read with caution - suggest there is little basis for that argument. Only the middlemen or the distributors seem to be getting rich off the practice.

The fishermen I've met who are encouraged to take shark fins end up fishing only for shark fins rather than engaging in their customary subsistence fishing or small income fishing practices. Catching sharks often means going farther, which costs more, and means being away from family for multiple days. They only see a fraction of the money fetched in the end by the seller of a fin, because the fishermen - we're talking about people in small villages in places like Madagascar - have no personal access to the market for shark fins (Asia) and have no leverage. There's not enough space in the boat, so even if the fishermen wanted to take the entire shark back for food, they can't. Add in the fact that the local shark populations are being depleted, and the destructive practice also turns out to be bad business for the local fishers.

Thursday, April 10, 2008

The new Al Gore presentation

Gore delivered a "new" slideshow at the TED in March (thanks to James H for this). He finally addresses the gaping hole in the slideshow that anchored An Inconvenient Truth: namely, that we need to do more than change a few lightbulbs to slow climate change.

Here, in addition to expounding on recent ice data and emissions trajectories, he touches on the need for policies that place a price on carbon. Hallelujah. "Place a price on carbon" should be on the tip of every candidates tongue, north and south of the border.

Take a look:



Any thoughts on the new message? Or, to don my scientist hat again, his use of the ice data?

Wednesday, April 09, 2008

More on Earth Hour participation

The new poll reports that the majority of Canadians think Earth Hour should happen more often. One third of respondents said Earth Hour should be a monthly event, 10% said a weekly event, and 12% said the hour of darkness and quiet should be a daily event.

Almost half (46%) of the respondents participated in Earth Hour. The participation split partly along political lines: Green party (69%), Liberals (64%), NDP (58%), the Conservatives (53%) and the Bloc Quebecois votes coming in last (39%). Maybe that result also suggests where the Greens, rising in the poles, are getting those votes?

Growing ethanol on conservation lands

One of the assumptions in our recent paper on the impact of increasing corn ethanol production on the Gulf of Mexico Dead Zone is that farmers could start to plant crops on land enrolled in a federal conservation program.

The latest data shows that may be happening. The area of U.S. croplands enrolled in the federal Conservation Reserve Program decreased from by 2.12 million acres since July of last year (using February data), a drop of 6%. The NY Times reports that the drop was caused by high commodity prices, driven in part by the ethanol boom.

Farmers sign a ten-year contract when entering land in the CRP. As it stands, that land cannot be returned to cultivation until the contract expires. It is worth remembering that, despite the headlines and echoing blog posts, the area of CRP lands had been increasing for the past ten year, reaching an all-time high last year. This recent drop does not negate those changes. So the real question is what happens to the 9.5 million acres of land for which the contracts expire in the next three years.

Saturday, April 05, 2008

Do the IPCC scenarios underestimate future emissions?

A commentary in this week's Nature by Roger Pielke Jr. and colleagues about whether the future scenarios used by the IPCC underestimate future emissions has caused all sorts of fits, defenses and sighs. The journal itself went so far as to include rebuttals from climate and energy experts in the same issue.

Read More...

Friday, April 04, 2008

Tax AND trade in British Columbia

British Columbia has announced a cap and trade system aimed at reducing GHG emissions from the large final emitters. Details are still in the works. The Globe and Mail reports that some industries have already expressed concern.

The province's philosophy is sensible. Rather than get mired in the ongoing tax vs. cap-and-trade debate, try 'em both. The policies are by no means mutually exclusive: the tax will address consumers and the cap-and-trade system will address industry. Done well, the two pronged approach could be more equitable and more effective than many other proposed policies.

Thursday, April 03, 2008

The effect of Earth Hour

Leaving aside the debate about the value of eco-gimmicks like l'heure de terre, you have to be impressed, or at least surprised, by the level of participation.

Check out the drop in electricity demand in these cities between 8-9 pm last Saturday:

Christchurch, NZ 13.1%
Canberra, Aus 11.4%
Melbourne, Aus 10.1%
Toronto 8.7% (from typical for that time)
Syndey, Aus 8.4%
North Vancouver 7.0%
Port Coquitlam, BC 6.7%
London, Ont 5.9%
Ottawa 4.0%
Vancouver 3.4%

Seems that parts of the Commonwealth really took this initiative to heart.