Abrupt Climate Change In The Arctic (And Beyond) An Update

AGU Fall Meeting 2013: Our understanding of future Arctic change is informed by the history of past changes, which often have been both large and abrupt. The well-known ice-age events such as the Younger Dryas show how sea-ice changes can amplify forcing to produce very large responses, with wintertime sea ice especially important. These changes…

IPCC Report AR5 September 2013 (WG1) “The Pause”

On September 27 2013 the IPCC released the WG1 report of the IPCC AR5 assessment. UN Secretary General Ban-Ki Moon addressed the IPCC at Stockholm on 27 September. He stated that “the heat is on. We must act”. US Secretary of State John Kerry responded to the report saying “This is yet another wakeup call: those who deny the science…

Plant Productivity Reduction with Climate Change

NASA: Drought Drives Decade-Long Decline in Plant Growth published 08.19.10 by Kathryn Hansen | Source Earth has done an ecological about-face: Global plant productivity that once flourished under warming temperatures and a lengthened growing season is now on the decline, struck by the stress of drought. NASA-funded researchers Maosheng Zhao and Steven Running, of the…

Bio-energy with carbon capture and storage

Bio-energy with carbon capture and storage (BECCS) is a greenhouse gas mitigation technology which produces negative carbon dioxide emissions by combining biomass use with geologic carbon capture and storage. The concept of BECCS is drawn from the integration of trees and crops, which extract carbon dioxide (CO2) from the atmosphere as they grow, the use…

Estimating northern polar CH4 flux

A compilation of related science with some commentary. Microbes in thawing permafrost: the unknown variable in the climate change equation David E Graham, Matthew D Wallenstein, Tatiana A Vishnivetskaya, Mark P Waldrop,Tommy J Phelps, Susan M Pfiffner, Tullis C Onstott, Lyle G Whyte, Elizaveta M Rivkina,David A Gilichinsky, Dwayne A Elias, Rachel Mackelprang, Nathan C…

Mike Mann on Hardball

Published on YouTube Aug 21, 2013: Chris Mathews interviews scientist Michael Mann of Penn State U, and a Republican Strategist, on the GOP’s anti-science bent. ClimateCrocks.com explains: Well, in some cases, like His Excellent and Serene Highness Lord Monckton, birthers and climate deniers are the same people – see below. What’s interesting about the video…

The conservative argument to act on climate change

August 15, 2013: Republican Bob Inglis’ belief that climate change is real helped get him booted from Congress by a Tea Party primary challenger in 2010. He talks with Chris Hayes about his ongoing efforts to convince Republicans to act on global warming. Related Climate reality must win out over political attacks on science

Heat Waves to Become Much More Frequent and Severe

Science Daily Aug. 15, 2013 — Climate change is set to trigger more frequent and severe heat waves in the next 30 years regardless of the amount of carbon dioxide (CO2) we emit into the atmosphere, a new study has shown. Extreme heat waves such as those that hit the US in 2012 and Australia…

NASA Finds ‘Amazing’ Levels Of Arctic Methane And CO2, Asks ‘Is a Sleeping Climate Giant Stirring in the Arctic?’

By Joe Romm / Climate Progress – on Jun 13, 2013: A NASA science team has observed “amazing and potentially troubling” levels of methane and CO2 from the rapidly warming Arctic. Given the staggering amount of carbon trapped in the permafrost — and the fact that methane is a very potent heat-trapping gas — the…

400 Parts in a Million: The World’s Biggest Experiment

Subscribe to MinuteEarth – it’s FREE! – http://dft.ba/-minuteearth_sub For further information: 400 ppm official reference – http://dft.ba/-400ppm NOAA – http://www.climate.gov UK Met Office – http://metoffice.gov.uk/climate-change Climate Central – http://climatecentral.org Real Climate – http://realclimate.org IPCC FAQs – http://dft.ba/-IPCC US Global Change Research Program – http://globalchange.gov This episode was made possible by the generous support of Science…

Last Time Carbon Dioxide Levels Were This High: 15 Million Years Ago

By analyzing the chemistry of bubbles of ancient air trapped in Antarctic ice, scientists have been able to determine the composition of Earth’s atmosphere going back as far as 800,000 years, and they have developed a good understanding of how carbon dioxide levels have varied in the atmosphere since that time. But there has been…

Research closes gap between Warming and CO2 Rise

Feedbacks in the climate system – in which warming is linked to natural CO2 increase, driving further warming – may operate faster than previously thought. ACE CRC: Researchers use Antarctic and Greenland ice cores to examine temperature and CO2 changes during the largest natural climate change in Earth’s recent climate history: the warming out of…

Carbon Dioxide and Climate: A Scientific Assessment

Landmark Report of an Ad Hoc Study Group on Carbon Dioxide and Climate – Woods Hole, Massachusetts to the Climate Research Board, Assembly of Mathematical and Physical Sciences, National Research Council, NATIONAL ACADEMY OF SCIENCES | Washington, D.C. 1979 We have examined the principal attempts to simulate the effects of increased atmospheric CO2 on climate.…