Based on current measurements, the Arctic summer ice cap could be gone by 2060. However, if the expected feedback- less light reflected by ice, more absorbed by exposed sea- happens, it will be even earlier than that.
Recent studies suggest that even a minor local nuclear exchange could cause a far worse nuclear winter than previously expected. But don’t tell Bush that, or he might suggest it as a solution to global warming.
Technorati tag: Arctic ice cap, Nuclear Winter