Company agrees to record environmental settlement

The U.S. Justice Department on Thursday announced that Anadarko Petroleum Corp. had agreed to pay $5.15 billion to clean up hazardous substances dumped nationwide - including radioactive uranium waste across the Navajo Nation - in the largest settlement ever for environmental contamination.

Monarchs butterflies' migration is in peril because of rampant herbicide use

Every year, hundreds of millions of monarch butterflies find their way on what may be the world’s longest insect migration, traveling the length of North America to pass the winter in central Mexico. Yet the great monarch migration is in peril, a victim of rampant herbicide use. Over the past decade, U.S. fields containing milkweed have declined sharply. Orley “Chip” Taylor, a monarch expert at the University of Kansas, calls the loss “massive.”

Senators: Keystone pipeline needs review for health impacts

Saying the health impact of the proposed Keystone XL Pipeline hasn’t been properly explored, two Democratic senators on Wednesday called on the Obama administration and Secretary of State John Kerry to conduct a comprehensive study on the human health impacts of tar sands and the proposed pipeline.