2017 was warm. The next few years will be more important.

Global Warming

Summary: The world's temperature is in the news again, showing that 2017 was another warm year. Now that it is in the record books, let's look at the more important question -- about future warming, if a new pause has begun -- and what might be the political implications. One of the most important datasets … Continue reading 2017 was warm. The next few years will be more important.

A look at the future of global warming. Our political response depends on its trend.

Summary: The degree of global warming during the next few years might have large political effects, as the public policy debate appears to be at a critical point in its 29th year (from Hansen's Senate testimony). Will the pause resume, or will we get rapid warming? Close examination of the monthly data will give us clues … Continue reading A look at the future of global warming. Our political response depends on its trend.