The Montreal Protocol in 2011: Dynamic Action for Ozone and Climate Protection

In the first half of 2011 alone, a number of acute disruptions to seasonal atmospheric and climate norms have occurred, and latest scientific projections indicate the pace of global temperature increase is accelerating. The likelihood of the complete loss of Arctic summer sea ice by 2030, faster melting of the vast Greenland ice sheets, and the rapid and quickening thaw of permafrost regions indicate that the window for arresting climate change before tipping points are reached is rapidly closing.