Science has published an article urging more environmental scientists to take up blogging. Nick Anthis has a summary.
The article gives examples of "excellent, informative sites":
Mark Lynas,
RealClimate,
Climate Science,
James' Empty Blog,
DeSmogBlog,
Prometheus,
Science At Stake,
ScienceBlogs,
Scientist on ice, and
Climate change conference weblog.
A pretty good list, even if I do so say so myself.
Climate science is understandably covered well, but what fields are missing? What other aspects of environmental/earth science should there be blogs about? Land use change, natural resources/hazards, ... I'm interested in what others think because I'm looking for a niche to fill.