Scripps Institute of Oceanography projects that next month its monitoring station will for the first time measure CO2 at 400 parts per million.
Atmospheric CO2 has risen from 280 parts per million before the Industrial Revolution. 400 ppm is an arbitrary milestone that we'll blow right past on our way to 450 ppm within a few decades. This is an unprecedentedly fast rate of increase and it's getting faster. Not all measuring stations are exactly the same: A NOAA station in the Arctic measured CO2 at 400 ppm last year. [more inside]
posted by Sleeper
on Apr 25, 2013 -
While the 2007 IPCC report
showed Arctic sea-ice still present in 2100, it is now an unfolding "global disaster"
according to Cambridge Professor Peter Wadhams
. Climate Code Red summarizes the science, saying the sea-ice is "in a 'death spiral' and likely to be gone in summer within a few years" ... "The sea-ice volume is now down to just one-fifth of what it was in 1979", and paints a newly emerging, rapidly worsening climate picture
, urging climate scientists to sound the alarm on new data showing a world on the brink of dramatic tipping points, far sooner than anyone anticipated
posted by crayz
on Sep 18, 2012 -
of Americans say global warming is real and poses a threat to humanity. Which is good because if the global temperature raises by 4 degrees
we're all dead. However only 44 percent would be willing to face any financial hardship in the name of a solution.
posted by Artw
on Aug 10, 2008 -
Sucking CO2 out of the air has long been a holy grail for solving global warming; Richard Branson has promised $25m to anyone who succeeds. Of course it's already been done, but the amount of energy required doesn't make it net carbon positive. Now a team in Arizona, led by Klaus Lacknet
under the company of Global Research Technologies
, says it has made a significant breakthrough
that massively reduces the amount of energy required - the "project has reached the stage where it is quite clear we can do it." The planned prototype, which will be finished in two years, will cost $200,000 USD, be smaller than a shipping container and be capable of eliminating around 1 ton of CO2. Even if it works many hurdles remain but it portends a cooler future for air-capture technology.
posted by stbalbach
on Jun 9, 2008 -
Will algae defeat global warming?
"Fed a generous helping of CO2-laden emissions, courtesy of the power plant's exhaust stack, the algae grow quickly... The cleansed exhaust bubbles skyward, but with 40 percent less CO2... The algae is harvested daily and a combustible vegetable oil is squeezed out: biodiesel".
posted by reklaw
on Apr 14, 2006 -
CO2 'highest for 650,000 years' Current levels of the greenhouse gases carbon dioxide and methane in the atmosphere are higher now than at any time in the past 650,000 years.
(Found via Treehugger)
Sounds like it's time to buy that lovely oceanfront property in Kansas.
posted by Mr Bluesky
on Nov 26, 2005 -