Mongabay is a vast site focussing mainly on conservation. Started in 1999 by Rhett Butler it was slowly expanded to cover a wide range of issues, projects and news on conservation. Very useful resource for senior school students.

Real Climate

Real Climate – A blog produced by those working in climate science as a reaction to some of the stories circulating about climate change. Aimed at media personnel to help find answers it often features in science round-ups on blogs worth seeing.