Part III[wpcol_1half id=”” class=”” style=””]Guillas et al. note that this provides an example of how variations in the atmosphere and hydrosphere can drive very small changes in environmental conditions that are able, in turn, to trigger a response from the Earth’s crust. Most importantly, they speculate that, in a warmer world, comparable and larger changes…
Part II[wpcol_1half id=”” class=”” style=””]Dunkley Jones et al. support the view that, while gas-hydrate release was probably not responsible for an initial, rapid, CO2-driven warming, the as yet unknown event responsible for this subsequently triggered the large-scale dissociation of gas hydrates, which contributed to further warming as a positive feedback mechanism. As the authors note,…
Climate forcing of geological and geomorphological hazardsBy Bill McGuire / UCL[wpcol_1half id=”” class=”” style=””]April 19, 2010: 12 research papers and two summaries of conference discussion sessions contained in this Theme Issue build upon presentations and dialogue at the Third Johnston–Lavis Colloquium held at University College London in September 2009. The meeting brought together delegates from…
Video[wpcol_2fifth id=”” class=”” style=””] [/wpcol_2fifth][wpcol_3fifth_end id=”” class=”” style=””] Dramatic Changes in Polar Ice NASA’s Waleed Abdalati oulines the situation Published on YouTube May 22, 2013 NASA Chief Scientist – Abdalati previously served NASA as Head of Cryospheric Sciences at Goddard Space Flight Center. [/wpcol_3fifth_end] [wpcol_2fifth id=”” class=”” style=””] [/wpcol_2fifth][wpcol_3fifth_end id=”” class=”” style=””] Climate Geomorphology Will…
Part IV[wpcol_1half id=”” class=”” style=””]Bill Gates is now the world’s leading financial supporter of geoengineering research. He is an investor in various geoengineering enterprises, including Silver Lining, a company pursuing marine cloud brightening methods. He is an investor in Carbon Engineering Ltd, a start-up company formed by David Keith to develop technology to capture carbon…
Part III[wpcol_1half id=”” class=”” style=””]However, other atmospheric scientists argue that the complexity of the climate system means that it is impossible to draw any firm conclusions about the consequences of such a radical intervention in the Earth system. They point out, for example, that the chemistry of the atmosphere is complicated, so turning down the…
Part II[wpcol_1half id=”” class=”” style=””] Space mirrors & painted roofs Geoengineering may be defined as deliberate, large-scale intervention in the climate system designed to counter global warming or offset some of its effects. More than 40 schemes have been put forward, with some the subject of intensive research. They are usually divided into two types:…
‘The Ultimate Technofix’: Playing God with the ClimateBy Clive Hamilton / CAPPE[wpcol_1half id=”” class=”” style=””]March 7, 2013: Climate scientists have watched with mounting alarm as carbon dioxide concentrations have increased relentlessly. The anxiety has deepened each year as it has become clearer that the range of emissions paths mapped out by experts in the 1990s…
Video[wpcol_2fifth id=”” class=”” style=””] [/wpcol_2fifth][wpcol_3fifth_end id=”” class=”” style=””] Free Market Solution Climate Change and Free Market Solution Published on YouTube May 23, 2013 Climate Scientist Hansen Turns Activist, Advocates ‘Fee’ on Carbon Pollution. If you give the money to the public, then it’s not a tax. It’s a fee collected from fossil fuel companies with…
US national security advisor says climate change is threat, calls for Emissions ReductionsBy Carl Franzen / The Verge[wpcol_1half id=”” class=”” style=””]April 24, 2013: Scientists and advocates have called for reductions in greenhouse gas emissions for years. But now the White House national security advisor is joining in the chorus. Tom Donilon, the national security advisor…
Expedition to a crumbling Antarctic ice shelfBy Ted Scambos / NSIDC[wpcol_1half id=”” class=”” style=””]November 4, 2011: With preparations in place, I asked if I could tag along with a NASA group here working on Operation IceBridge, an airborne mapping and measurement program intended to bridge the gap between the ICESat satellite (a laser-ranging mission that…
The answer is blowing in the wind: The warming went into the deep endBy Rasmus Benestad / RealClimate[wpcol_1half id=”” class=”” style=””]April 26, 2013: There has been an unusual surge of interest in the climate sensitivity based on the last decade’s worth of temperature measurements, and a lengthy story in the Economist tries to argue that the…