A Farewell to the New York Times Green Blog - NYTimes.com

the time and effort required to gather, sift, analyze and convey information with authority, particularly on globe-spanning or contentious issues, is expensive.

NYT cancels Green blog : Columbia Journalism Review

When the Times announced in January that it was dismantling its three-year-old environment pod and reassigning its editors and reporters to other desks, managing editor Dean Baquet insisted that the outlet remained as committed as ever to covering the environment. Obviously, that was an outright lie...In an act of total cowardice, the Times clearly timed its
announcement to avoid (for the weekend, at least) having to deal with
what is sure to be widespread criticism.