08 Jan '12, 10am

So if thousands of square miles of permanently frozen soil thaws… what happens?

Scientists call them positive feedback loops, but this is not the kind of positive feedback you give your children when they do well at school. Vicious cycles would be a better term , and they have the potential to make global warming even worse than currently expected. I’m referring to processes in which global warming causes changes that amplify the original warming, which feeds back on itself and causes even more warming, etc., etc., etc…. Perhaps the best know of these viscous cycles is the “ice-albedo feedback loop.” This is a fancy way of saying that global warming melts snow and ice; dark ground and open ocean absorb more solar energy than white snow and shiny ice; that extra solar energy amplifies the initial warming, completing the feedback loop. This process is relatively straightforward to predict and is already accounted for in climate models. (It also shows th...

Full article: http://switchboard.nrdc.org/blogs/dlashof/not_so_permafro...

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Driving on Snow and Ice | Care2 Healthy Living

Driving on Snow and Ice | Care2 Healthy Living

care2.com 07 Jan '12, 11pm

By Philip Schmidt, Networx I learned to drive with an early-80s Mercury Zephyr, a car that symbolized virtually everythi...

The Next Ice Age and the Anthropocene

dotearth.blogs.nytimes.com 08 Jan '12, 6pm

Interesting. David Archer and [Andrey] Ganopolski, back in 2004 [“A movable trigger: Fossil fuel CO2 and the onset of the ...

The Next Ice Age and the Anthropocene

dotearth.blogs.nytimes.com 08 Jan '12, 6pm

Interesting. David Archer and [Andrey] Ganopolski, back in 2004 [“A movable trigger: Fossil fuel CO2 and the onset of the ...

Citizen Power Goes Solar

csrwire.com 04 Jan '12, 3pm

In 2011, we saw a burgeoning movement of protest spread around the world. But protest is only one side of the coin – and m...

The Next Ice Age and the #Anthropocene: #agw

dotearth.blogs.nytimes.com 08 Jan '12, 6pm

Interesting. David Archer and [Andrey] Ganopolski, back in 2004 [“A movable trigger: Fossil fuel CO2 and the onset of the ...

Dot Earth Blog: The Next Ice Age and the Anthro...

dotearth.blogs.nytimes.com 08 Jan '12, 6pm

Interesting. David Archer and [Andrey] Ganopolski, back in 2004 [“A movable trigger: Fossil fuel CO2 and the onset of the ...

Dot Earth Blog: The Next Ice Age and the Anthro...

dotearth.blogs.nytimes.com 08 Jan '12, 6pm

Interesting. David Archer and [Andrey] Ganopolski, back in 2004 [“A movable trigger: Fossil fuel CO2 and the onset of the ...

A Big Picture Look at Global Warming

A Big Picture Look at Global Warming

skepticalscience.com 04 Jan '12, 4pm

You seem to not understand the 'big picture.' Note figure 1 - labeled - Change in Earth's total heat content. Since 2001 t...

Global Warming and Water Shortages | Peak Oil N...

peakoil.com 08 Jan '12, 12pm

According to Tetra Tech’s analysis, parts of Arizona, Arkansas, California, Colorado, Florida, Idaho, Kansas, Mississippi,...

Dot Earth Blog: 'Much Ado About Methane'

dotearth.blogs.nytimes.com 04 Jan '12, 10pm

The possibility of a catastrophic release is of course what gives methane its power over the imagination (of journalists i...

EnvHealthNews: Scientists predict bleak future for mercury pollution

EnvHealthNews: Scientists predict bleak future ...

environmentalhealthnews.org 06 Jan '12, 1pm

What did they do? Researchers used a computer model to simulate global mercury cycling now and in the year 2050 to better ...

Domain Industry Pioneer, Author & Evangelist Ma...

dnjournal.com 06 Jan '12, 9pm

Marc will likely be talking about domains a lot more often and in a lot more places in 2012. The new Simon & Schuster edit...

Seal populations plummet as North Atlantic sea ...

e360.yale.edu 06 Jan '12, 8pm

06 Jan 2012: Seal Populations Plummet as North Atlantic Sea Ice Thins, Study Says A new study says that thinning sea ice i...

Over Half of Germany's Renewable Energy Owned By Citizens & Farmers, Not Utility Companies

Over Half of Germany's Renewable Energy Owned B...

treehugger.com 06 Jan '12, 8pm

Germany's promotion of renewable energy rightly gets singled out for its effectiveness, most often by me as an example of ...