As Cox indicates, environmental issues routinely make the news (13).
I'll keep a running list of blogs that Cox and others reference. Hopefully, the list will be a good resource for you. If nothing else, you might skim some of the entries to get a feel for the genre of the blog post:
Dot Earth
A blog hosted by the NY Times.
Environment News Network
This blog reports on issues such as health, green technology, energy, and wildlife.
Grist.org
Grist reports on environmental news with a not so subtle touch of sarcasm.
National Geographic: Daily News
You'll find recent environmental news here--and award-winning photography.
