10/31/2010 05:12 am ET | Updated May 25, 2011

Bjorn Lomborg, Former Skeptic, Now Believes In Climate Change

The world's most high-profile climate change sceptic is to declare that global warming is "undoubtedly one of the chief concerns facing the world today" and "a challenge humanity must confront", in an apparent U-turn that will give a huge boost to the embattled environmental lobby.

Read more on The Guardian