"The San Joaquin River in California is America's most endangered waterway this year, says the national advocacy group American Rivers, known for annually picking the country's 10 most troubled rivers."

"One month after the Washington state landslide that killed at least 34, President Obama is planning to survey the destruction firsthand."

"A March 20 Washington Post Web article and a March 21 print article stated that Koch Industries was the largest leaseholder in Canada’s oil sands. Further reporting has indicated that Koch Industries on a net acreage basis is the largest American and foreign holder of leases in Canada’s oil sands but it might narrowly trail two Canadian companies overall. ..."

"Food manufacturers are routinely exploiting a 'legal loophole' that allows them to use new chemicals in their products, based on their own safety studies, without ever notifying the Food and Drug Administration, according to a new report by an environmental and consumer advocacy group."

"The chairman of the Senate committee that oversees transportation issues said Monday that oil companies are dragging their feet on providing data to regulators about the safety of freight trains that are used to carry crude oil."

"Millions of gallons of water used to flow every day from the Rocky Mountains to the Gulf of California. Now, the Colorado River ends at Morelos Dam on the U.S.-Mexico border. Below it, one of North America's largest wetlands is dry."

"The U.S. Environmental Protection Agency's chief said on Monday that new carbon pollution standards due in June will be flexible enough for all states to meet but will be environmentally stringent and federally enforceable."

"For more than 50 years farmers across North America have been spraying atrazine, a pesticide, on crops, mainly corn, applying millions of pounds a year."