Weatherdem's Weblog

Bridging climate science, citizens, and policy


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Climate Change Occurring Faster Than Predicted & Other Climate-Related News

Additional examples of how out-of-date the 2007 IPCC’s Fourth Assessment Report was at the time of release continue to be issued.  The latest: a World Wildlife Fund report which acts as a summary of recent scientific papers and reports.  The summary: climate change is occurring faster than was presented by the IPCC last year.  Indeed, NOAA recently released an arctic report that identifies stronger effects of warming on Greenland and permafrost.  The next IPCC Report will be released in 2013, meaning most of the work towards it will be done during the next President’s term.  Actions taken during the next four years will have ramifications on the future state of the climate.  Recognizing that the 2007 Report has already underestimated the impacts of human-forced climate change should harden the next administration’s actions.

On a related note, a slowing economy won’t help the climate.  Emissions don’t just have to dip for a short while.  They have to stop.  Then the GHGs that we have already emitted have to be put into a emission-sink.  The oceans are nearly at capacity for carbon, so large challenges remain.

Obama is set to declare CO2 a dangerous pollutant.  Good.  The action could stop plans to build dozones of coal plant.  Obama’s energy adviser, Jason Grumet, said that if Congress didn’t act within 18 months, Obama would take action by himself.  My question: why wait 18 months?  We simply don’t have the time.  I understand that Obama is making clear his respect for the legislature’s role, but 18 months is a ridiculous amount of time when the Bush administration has spent the past 8 years making sure we took no action.  At the same, I realize how important it is to have a Presidential candidate with a serious energy adviser.

Europe toughens GHG goals, not allowing economic slowdown to delay their activities.  Good for them.  Plenty of CONServatives in the U.S. are already saying the recession precludes any action on GHG emission goals, or any other climate change action.  Will America follow Europe’s lead?


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Ancient Arctic Ice Shelves Breaking Away

The most recent in a series of break offs was reported today. The 4,500 year old Markham Ice Shelf which is the size of Manhattan broke off Ellesmere Island within the last month. That’s just the latest: two large sections of ice detached from the Serson Ice Shelf, shrinking that ice feature by 47 square miles, or 60 percent. Unusual cracks have been reported in northern Greenland ice features. Southern Greenland glaciers have undergone record melting this year. And the “permanent” Arctic ice has achieved its second lowest extent in recorded history as it melted away this summer like it did last summer, which holds the record (for now) of the lowest recorded extent.

Record warm temperatures in the Arctic circle are causing the abrupt changes in what should be permanent features. The Arctic has experienced more warming than any other part of the globe to date. Anybody who still things the Arctic won’t be ice-free in the summer at the end of the century (likely sooner!) probably won’t ever be convinced of the effects of human forced climate change.

More bad news from the article:

“The Markham Ice Shelf had half the biomass for the entire Canadian Arctic Ice Shelf ecosystem as a habitat for cold, tolerant microbial life; algae that sit on top of the ice shelf and photosynthesis like plants would. Now that it’s disappeared, we’re looking at ecosystems on the verge of distinction,’ said Muller.

Large ice sheets off western Antarctica broke off earlier this year, following a recent trend of catastrophic collapse of sheets from that continent. Now the same thing is occurring up north. Meanwhile, the Canadian Prime Minister, Stephen Harper, in his infinite wisdom, wants to set up additional oil and gas drilling now that more land is accessible. When will the 20th century approach to burning fuel end? No time soon if Stephen Harper and John McCain have anything to say about it.

On the other hand, most Americans want to end our abuse of fossil fuels and implement a renewable energy-based approach. That’s merely one piece of what we’ll have to do as a species to avoid the worst effects of climate change.

Cross-posted at SquareState.

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JohnnyRook has a very well written diary about this event and the declining health of our frozen water features across the globe.

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