> Arctic summers ice-free 'by 2013' (2007) The very article you link points out that scientific consensus is 2040-2100, and the author of the paper is quoted a

> Arctic summers ice-free 'by 2013' (2007) The very article you link points out that scientific consensus is 2040-2100, and the author of the paper is quoted as saying that, because of the variance in his own model, 2030 is a more reasonable estimate. > the other two Refer to time of action, not time of consequence. There's a ~30-40 year delay between greenhouse gas emissions and fully realized warming. A ton of gas released today doesn't cause warming tomorrow. Because these targets haven't been met, even if all emissions stopped today, enough ice would melt over the next century that the Solomons, Marshalls, Maldives, and other low-lying island nations will be swamped.