Diplomats Head to Sunny Cancun, but U.S. Lawmakers Stay Home - NYTimes.com

The apathy is palpable, and a far cry from the atmosphere last year when President Obama and the leaders of more than 100 other nations descended in droves upon the chilly Danish capital of Copenhagen to hawk their views at the climate circus. That conference saw U.S. congressional champions of cap-and-trade legislation as well as skeptics jostling to share their views on the prospects for American domestic action and a new international treaty.
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Sen. Dianne Feinstein (D-Calif.), who supported climate legislation last year, admitted that the global negotiations didn't make a bleep on her radar.

"I haven't really thought about it, to be honest with you," she said. But Feinstein denied that was because of the unpopularity of climate change these says.

Boxer sends statement, but no staff

"No -- no, no, no, it's just that I'm not on a committee related to it," she said. Her California colleague Barbara Boxer (D), who has made fighting climate change a signature issue, said she is too busy in the lame-duck session to go. Nor is she sending staff. Instead, Boxer said, "I'm sending a statement to Cancun."