"A federal judge yesterday threw out a federal scientific study that forms the basis for protecting the delta smelt in California's sprawling Sacramento-San Joaquin River Delta."

"The United States government lobbied the head of the U.N. climate panel to block the appointment of an Iranian scientist to a key position, saying it would be problematic, leaked U.S. diplomatic cables show."

"The Environmental Protection Agency said on Wednesday it was again delaying its final rule on smog limits, with the rule now expected by the end of July 2011."

"At a 2 p.m. news conference streamed live over the Web, scientists at the National Aeronautics and Space Administration said they found microbes in the mud beneath a California lake that can use arsenic -- usually considered toxic -- rather than phosphorus as one of the building blocks of its DNA. Phosphorus is one of the elements that sustains all other life forms on earth."

"In what promises to be one of the most impressive innovations to come out of the Cancun climate talks, the philanthropic arm of Google is launching a new technology platform Thursday that will allow worldwide monitoring and measurement of changes in the earth's environment."

"The author of a report critical of climate scientists defended himself against plagiarism charges Tuesday, and denied he was pressured by Republicans to tilt the report."