Money quote:

“The upshot is that the North American continent and the Indian Ocean will experience the greatest changes in sea level – adding 1 or 2 metres to the current estimates. Washington DC sits squarely in this area, meaning it could face a 6.3-metre sea level rise in total. California will also be in the target zone.

“Policy-makers must realise that the effects could be greater or smaller in different areas,” says team member Natalya Gomez. The team have so far only considered one ice sheet, so the effects of other ice sheets across the world could also have a similar impact, she says.”"

From New Scientist

No word on its affect on ocean levels but it is probably negligible. The real danger is that this is a harbinger of larger collapses to come.

Here is a video of the collapse. A much larger shelf may be in danger of breaking up as a result of this collapse.

• Switchgrass ethanol study shows that this source returns 540% of the energy required to grow and refine it. Corn returns something like 50%. Corn ethanol is not viable.
• The introduction of the $2500 Nano car in India and other emerging economies is going to have a profoundly negative effect of energy prices and generate enormous new emissions as the number of cars on the planet explodes.
• We’re using 2.9 million barrels of oil per day more than 6 years ago, globally. If you think oil at $100 is a story, think about oil at $200. When demand goes up and supply goes down, prices skyrocket.
• Automotive technology is poised for an explosion of innovation this year with the Tesla electric sports car, fuel cells, new biological hydrogen extraction techniques, highly efficient hybrids and plug-in hybrids and more. What does this tell us? That the conspiracy theories of the past that said oil and car companies were killing and/or stifling innovation were true- this stuff didn’t just appear out of thin air.
• Greenland Ice Sheet Scares the Crap Out of Climate Scientists. We’ll be watching the ice globally this year, especially in Grenland where the volume of water held in stasis by the ice sheet is equivalent to the entire Gulf of Mexico (!). Estimates for ocean rise by 2050 due to rapidly accelerating melting and calving of the ice sheet range from 2-6 meters. Goodbye virtually every coastal city worldwide including our nation’s capitol (anyone remember the flooded national Mall last year, New York’s subway floods and the ongoing national shame of Katrina?)
• The weather. It’s impossible to describe how big this story is. Here in Rochester, NY, the famously chilly winter upstate area was 70 degrees earlier this week, breaking all records. Killer tornados in the midwest in January, winter storms with CAT 4 winds (140 mph+) in the Pacific Northwest. Droughts in the southwest and southeast with no reserve water supplies. That’s just this week, folks.
• Water, water, nowhere. Only 1 in 500 Chinese have free access to potable drinking water. In much of the world it is worse. Yes, they have to buy drinking water and it’s not cheap. Repercussions of water issues cross all geographic and economic boundaries.
• Carbon costs. We’re going to have to start measuring the carbon costs of virtually all of our activities and products if we’re going to startle people into awareness of how their own actions are worsening the problem of climate change. I’m not buying organic milk that is shipped across the country when I can get local milk for half the price, dollars and carbon-wise. Look at what you buy and how far it came to get to you. And don’t forget the packaging.
• Freegan culture and the Chinese product backlash. Because of the Chinese toy scandals a lot of parents who don’t have time to worry about environmental issues are questioning the provenance of the products they buy and the immediate response is ‘I’m not buying Chinese’. A secondary response is the rise of freegan culture that says ‘I’m not buying things I don’t need and when I do need something I’m going to look for used or free stuff’. You don’t have to dumpster dive, there’s a huge thrift shop culture out there. Do you really need a new blender when your neighborhood Goodwill probably has ten perfectly good ones for a buck or two?
• Home and automotive energy costs crush economy by limiting disposable income. We’re paying five times as much as ten years ago for heat/AC and gas, yet incomes have not risen much. When you take $300-400 more out of a typical family’s monthly budget because of energy costs that money does not flow into the economy.

These stories are just the ones at the top of my awareness today. There are dozens more, so many in fact, that it is daunting to even write a quirky blog about climate change- it is overwhelming in the reach and impact it already has. Nevertheless I’ll be at it again in 2008.

The issue here is that climate change doesn’t simply mean higher ocean levels. Even a slight rise in levels, combined with more violent weather due to warming, will mean more and more of these storms in regions where they have been very rare in the past. Because there was no historical record of major storm surges, these coastal areas are highly developed and support dense populations. The potential for future destruction is much higher because of this.

This is a classic environmental feedback loop. Warming generates storms, higher ocean levels mean higher surges. Interestingly, the same storm caused unstable snowpack conditions in Switzerland, creating dangerous avalanche conditions.