It's not just that the billionaire Koch brothers have spent tens of millions to undermine science and stifle debate on climate change. It's that they do it in secret.

"New research suggests the chemicals are playing a significant and previously unknown role in the global decline of amphibians."

"SUQUAMISH, Wash. — Stormwater runoff from highways appears to contain one or more unidentified compounds shown to be highly toxic to coho salmon and perhaps other salmon as well."

"Last fall, remote cameras in a rugged expanse of desert grasslands in Southern Arizona captured arresting images of a jaguar slinking through the underbrush, its yellow eyes fixed on some distant sight. The photos add to the dozen or so documented sightings of the endangered cat on American soil in the last century."

"Representatives from 17 states today joined an alternative association for local and state air pollution control agencies."

"More than half the Senate on Wednesday urged quick approval of the Keystone XL oil pipeline, ramping up pressure on President Barack Obama to move ahead with the project just days after he promised in his inaugural address to respond vigorously to the threat of climate change."

"SALT LAKE CITY -- A group of Utah doctors is declaring a health emergency over the Salt Lake City area's lingering air pollution problem."

"Glaciers in the tropical Andes have shrunk by 30-50% since the 1970s, according to a study."

"Bird flu researchers end a yearlong moratorium on experiments to determine whether the H5N1 virus can mutate and spread among humans. The work, which was deemed risky, won't resume yet in the U.S."

"How hot is the controversial Keystone Pipeline controversy getting? The Sierra Club is — for the first time in its history — going to engage in civil disobedience on Feb. 17 in Washington, D.C., which is also a day that greenies predict will be 'the largest climate rally in history.'"