National (U.S.)

"When Kenneth Olden discusses environmental justice, he knows what he is talking about."

New techniques may allow purebred bison calves bearing the genes of the animals that originally populated North America to be reproduced disease-free. Most of today's bison descended from animals cross-bred with domestic cattle.

"The current poster child for global warming is a polar bear, sitting on a melting iceberg. Some health officials argue the symbol should, instead, be a child."

"Wildfires burning across the northern Rockies threatened hundreds of homes on Monday in Idaho, Wyoming and Montana, while firefighters in Washington state scrambled to battle scores of blazes sparked by weekend lightning storms across the eastern Cascades."

"A day after it began drilling its first well in the Arctic Ocean, Shell has been forced to temporarily abandon the work because of sea ice moving into the area."

"For years they were alone as their strength was sapped and their bank accounts drained by the cancers they caught at Ground Zero. Now, finally, New York’s 9/11 heroes have gotten some backup."

"The harassment faced by U.S.-based climate scientists has been well documented in the media -- but not the harassment of scientists in Europe, Canada or the rest of the world. That's because there hasn't been much to report."