White House warned on Arctic ice loss

By Dr Nafeez Ahmed / via Guardian. National security officials worried by rapid loss of Arctic summer sea ice overlook threat of permanent global food shortages. Senior US government officials are to be briefed at the White House this week on the danger of an ice-free Arctic in the summer within two years. The meeting is bringing together Nasa’s acting chief scientist, Gale…

Lester Brown: Perspectives on Limits to Growth / World on the Edge

We are facing issues of near-overwhelming complexity and unprecedented urgency. Can we think systematically and fashion policies accordingly? Can we move fast enough to avoid environmental decline and economic collapse? Can we change direction before we go over the edge? I will look at the economic future through and environmental lens to fashion a plan…

Richard Alley: Perspectives on Limits to Growth / World on the Edge

We rely heavily on energy use, dominated by finite fossil fuels. We have high scientific confidence, based on solid physics, that burning most of the remaining fossil-fuel resource and releasing the carbon dioxide will cause large and long-lasting climate changes. Studies of societal and economic impacts typically indicate that such large climate changes will make…

Discovery Channel – Global Warming, What You Need To Know, with Tom Brokaw

What You Need To Know, with Tom Brokaw. RELATED How Global Warming Made Hurricane Sandy Worse http://www.climatecentral.org/news/how-global-warming-made-hurricane-sandy-worse-15190 Last Time Carbon Dioxide Levels Were This High: 15 Million Years Ago http://www.sciencedaily.com/releases/2009/10/091008152242.htm Climate Story Of The Year: Extreme Weather From Superstorms To Drought Emerges As Political, Scientific Gamechanger http://thinkprogress.org/climate/2012/12/21/1278861/climate-story-of-the-year-extreme-weather-from-superstorms-to-drought-emerges-as-political-scientific-gamechanger Global warming has stopped? Again?? http://www.youtube.com/watch?v=Qbn1rCZz1ow Global Warming,…