Most people have heard about how rising CO2 levels are resulting in a changing global climate. Fewer have heard about the other consequence of rising CO2 levels- when the CO2 is absorbed into the oceans, it disassociates into carbonic acid. This alters the pH of our world's oceans, and it's called "Ocean Acidification". This changing ocean chemistry has many important and devastating consequences. [more inside]
posted by WhySharksMatter on Sep 5, 2009 - 21 comments

potholer54 is a youtuber who in his own words; I've been a journalist for 20 years, 14 years as a science correspondent. My degree is in geology, but while working for a science magazine and several science programs I had to tackle a number of different fields, from quantum physics to microbiology. He has a series called Climate Change that you might find interesting. [more inside]
posted by nola on Jun 3, 2009 - 5 comments

What Will Change Everything? - the 2009 Edge Annual Question [more inside]
posted by Gyan on Dec 31, 2008 - 25 comments

Video (8MB, MPEG) of arctic sea ice extent, recorded from January to September 2007. [other formats] This summer a dramatic decrease compared to previous years in the extent of the north pole ice cap was observed. Scientists are freaked out [bugmenot]. This summer, the Northwest Passage was open for a few weeks, allowing three ships to traverse it. [more inside]
posted by sergeant sandwich on Oct 12, 2007 - 32 comments

Who can you trust if you can't trust the Wall Street Journal? RealClimate debunks the latest junk science on climate change from the pages of the Wall Street Journal.
posted by all-seeing eye dog on Jun 23, 2005 - 35 comments

Scientists bewildered by sharp rise of CO2 in atmosphere for second year running. "The fear held by some scientists is that the greater than normal rises in C02 emissions mean that instead of decades to bring global warming under control we may have only a few years. At worst, the figures could be the first sign of the breakdown in the Earth's natural systems for absorbing the gas. That would herald the so-called "runaway greenhouse effect", where the planet's soaring temperature becomes impossible to contain. As the icecaps melt, less sunlight is refected back into space from ice and snow, and bare rocks begin to absorb more heat. This is already happening."
posted by acrobat on Oct 11, 2004 - 47 comments