Articles

Bush administration begins plotting its legacy

Presidents traditionally wind up their tenure by pushing through as many executive regulations as possible. Bill Clinton was no exception: he instituted the famous roadless rule in the last days of his presidency, as well as other enviro-friendly measures. “Starting in early 1999 we had people down in the White House basement with word processors […]

Grist staff Politics

John Edwards would not require that new coal plants sequester their CO2 emissions

There was some question in this thread about what exactly John Edwards means when he says he would "require that all new coal-fired plants be built with the required technology to capture their carbon dioxide emissions." Would he require that new coal plants sequester their emissions, or merely that they be built in such a […]

David Roberts Climate & Energy

Glacial melting is accelerating more quickly than projected

Climate change is occurring much faster than the IPCC models project. The Greenland ice sheet is a prime example. Robert Correll, chairman of the Arctic Climate Impact Assessment, said in Ilulissat recently:

We have seen a massive acceleration of the speed with which these glaciers are moving into the sea. The ice is moving at two metres an hour on a front 5km [3 miles] long and 1,500 metres deep. That means that this one glacier puts enough fresh water into the sea in one year to provide drinking water for a city the size of London for a year.

The glacier's movement is accelerated as water flows down "moulins" (see picture) to the ice-bedrock interface at the bottom and acts as a lubricant for the entire glacier to slide and glide on. This "provides a mechanism for rapid, large-scale, dynamic responses of ice sheets to climate warming," according to research led by NASA and MIT scientists [PDF]. Yet this factor has been given "little or no consideration in estimates of ice-sheet response to climate change."

Joseph Romm Climate & Energy

Greenland glaciers melting at an alarming rate

Depressing climate news, version 17,354: Greenland’s two-mile-thick ice sheet is melting at a rate unforeseen to scientists and climate models. Chunks of ice breaking off are so huge that they’re triggering earthquakes; the glaciers are adding some 58 trillion gallons of water annually to the oceans, more than twice as much as they were 10 […]

Grist staff Climate & Energy

Ex-heads of state tell current heads of state how to solve climate crisis

If you're into exclusive clubs, check this one out: the Club de Madrid, membership limited to former heads of state. (Actually, even heads of state can get blackballed.) Those former heads of state are trying to get their successors to do what they couldn't and tackle the climate crisis. In collaboration with the United Nations Foundation, the Club today released their recommendations for what the world should do on the next round of climate crisis. The ex-heads acknowledge the severity of the crisis and call for current leaders to facilitate rapid reductions in greenhouse-gas emissions, or face massive disaster:

Avoiding such a future requires global greenhouse emissions to peak in the next 10-15 years, followed by substantial reductions of at least 60% by 2050 compared to 1990 -- a formidable task that requires international cooperation and collective action without further delay. The cost of taking action now, however, is small -- about 1% of global GDP, according to the Stern Review -- and the benefits are large compared with the much heavier penalties of postponing action. The costs of both mitigation and adaptation will rise substantially with delay.

They call for all countries, developing and developed, to take on concrete greenhouse-gas-emission targets, but note that that will only happen if the next round is perceived to be equitable (i.e., the United States and other rich countries make cuts themselves and don't just lecture poor countries about what they should do). Here's the crux of their recommendation:

All countries should commit to reduce collectively global emissions by at least 60% below the 1990 level by 2050. Developed countries should take the lead in emissions reduction by adopting effective targets and timetables. As a first step, this could include a commitment to reduce their collective emissions by 30% by 2020. Rapidly industrializing countries should commit to reduce their energy intensity [greenhouse gas emissions per unit of economic growth] by 30% by 2020 (an average of 4% per year) and agree to emissions reduction targets afterwards.

They also call for an international carbon tax system, but are light on details of how this would work. They argue that carbon taxes are "easier to implement than cap-and-trade schemes and are economically efficient. A system of harmonized, universal carbon taxes should be agreed by the international community." Uh, if we can't even get cap-and-trade, how are we going to get a carbon tax? And how do we deal with the problem that carbon taxes don't provide certainty about exactly how much reductions will be achieved -- maybe people will just to decide to bite the bullet, pay more taxes, and keep on polluting.

More info and discussion below the fold.

Glenn Hurowitz Politics

Umbra on reusing bath water

Hi Umbra, My new (to me) house has a somewhat larger than standard bathtub with jets. I rarely have time for a bath, but last night took the opportunity to indulge. I had a nice soak, in water heated by solar energy, but then I had a tubful — perhaps 50 gallons? — of relatively […]

Ask Umbra® Culture

Some reviews and criticism of Bjorn Lomborg’s new book Cool It

I was all geared up to recommend this review of Bjorn Lomborg’s new book Cool It, written by The Weather Makers author Tim Flannery, but it turns out to be pretty bad. It’s kind of scattered all over the place a makes no coherent, forceful critique. Much better is Eban Goodstein’s review in Salon, which […]

David Roberts Climate & Energy

A round-up of top ocean stories

Read an article you'd like to see featured here? Send it to wavemaker@oceana.org.

A Manhattan-sized iceberg that had broken off a Canadian island came to a rest in a dead-end Arctic Ocean channel, much to the relief of cargo ships and oil rigs, which may have been threatened by the two-billion-ton berg.

A family out sailing in Massachusetts spied a mola mola, a bony sunfish shaped like a mix between a shark and a pancake. Usually found in warmer waters, the mola sometimes migrates north of the tropics.

A group of scientists announced a plan to wire the Pacific floor so that land-bound researchers can remotely view and study the sea floor. "This is a NASA-scale mission to enter the Inner Space," said one.

Leaked documents suggested the Canadian government is set to announce fast-tracked economic initiatives in the Arctic later this fall.

Andrew Sharpless Uncategorized

On the myth that polar bear populations are flourishing

Human-caused global warming is poised to wipe out polar bears. The normally staid U.S. Geological Survey -- studying whether the bear should be listed as a threatened species under the Endangered Species Act -- concluded grimly last Friday:

Projected changes in future sea ice conditions, if realized, will result in loss of approximately 2/3 of the world's current polar bear population by the mid 21st century. Because the observed trajectory of Arctic sea ice decline appears to be underestimated by currently available models, this assessment of future polar bear status may be conservative.

That's right -- this grim prediction is optimistic, a best-case scenario. In the next post, I'll examine why polar bears are likely to go extinct by 2030 if not 2020. But first I need to dispense with a myth that polar bears are doing well -- a myth propagated by people like Bjorn Lomborg in his new book, Cool It.