Talking to the US Senate

Letter of the week from US scientists to US Senate says climate change is happening - no discussion.

Tokenism

Why rational environmental policy is near impossible with climate change by David Pannell

Hockey stick

Hockey stick with new lines

1492 - good and bad impacts

The exchange of diseases and vegetables in 1492 onwards: Alfred Cosby 1972 classic, plus updated review from Yale.

via Chris Blattmann