I am often asked where to look for news and stories relating to the environment. One of these days I will put together a complete list, but in the meantime a solid recommendation is Grist, an online magazine. Check them out here. The site is certainly not without bias and a clear agenda, so be sure to cross reference with other news sources, but it is a really good place to find out what is happening in environmental news.
And of course, environmental news is often mainstream news these days, so don’t neglect your favorite newspaper. I like the LA Times.