Residents say goodbye to Picher, Oklahoma, a town undermined and polluted by mining operations.

"An El Nino weather pattern this year appears almost certain, Australia's Bureau of Meteorology said on Wednesday in a revised forecast, raising the prospect of drought in Australia and a even weaker monsoon in India."

"In the wake of last week's landmark passage of the House climate bill, conservatives have focused their fury on the handful of Republicans who voted in favor of the sweeping legislation."

"A bill introduced earlier this month would bring federal oversight of hydraulic fracturing fluids -- chemical mixtures pumped at high pressure into oil and gas wells in order to unlock deposits trapped deep underground."

"The US, China, and dozens of other countries are meeting [this week] in Egypt to chart the course of a new international agency aimed at promoting renewable energy."

"Canadian nuclear safety regulators say they have underestimated the seriousness of a design feature at the country's electricity-producing reactors that would cause them to experience dangerous power pulses during a major accident."

"Exxon Mobil said Monday it won't appeal nearly $500 million in interest a court recently ordered it to pay to Alaska fishermen, business owners and others harmed by the 1989 Exxon Valdez oil spill."

"From 1957 to 1987, hundreds of thousands of unprepared men, women and children who lived on or near Camp Lejeune, N.C., the largest Marine Corps base on the East Coast, were the unwitting victims of a decades-long water contamination disaster that is still claiming lives."

"There’s a kind of blue and green scum that can bloom in lakes and ponds across the nation. This scum is called cyanobacteria. For years, scientists have known that this stuff can produce dangerous toxins. Amy Quinton reports now researchers are studying whether there’s a link between cyanobacteria and Lou Gehrig’s disease."

Conservative Christians -- the Republican party's "base" -- are trying to galvanize opposition to the House-passed climate bill.