"U.S. EPA raised significant concerns today with the environmental effects of a controversial $7 billion pipeline proposal, emboldening the plan's critics and upping the ante for political clashes over Canadian oil sands crude that risk derailing the project for good."

"President Barack Obama today announced his intention to nominate Rebecca Wodder to be the next Assistant Secretary for Fish, Wildlife and Parks for the Department of the Interior."

"The spectrum of actions marking the UN's annual World Oceans Day ranges from the celebratory to the cautionary as ocean health is assaulted by challenges that include climate change, oil spills, pollution and overfishing."

"The Food and Agriculture Organization of the United Nations is out with a new report this week on the world food outlook."

"An unusual solar flare observed by a NASA space observatory on Tuesday could cause some disruptions to satellite communications and power on Earth over the next day or so, officials said."

"Summer air pollution could trigger more asthma attacks for children who live in industrial cities, and the Environmental Protection Agency would like stricter rules to cut smog."

"At first glance the results of the fourth edition of the U.S. Environmental Protection Agency’s fourth National-Scale Air Toxics Assessment are sobering—the modeled data suggest that every person in the United States is at increased risk for getting cancer from outdoor air pollutants and that nearly a quarter of the population is at increased risk for certain noncancer health effects."

"Bruce Babbitt says Obama has failed to defend against Republican and industry attacks on environmental safeguards."

"The Fukushima meltdown showed how some nuclear plants are vulnerable to cooling-system failures. That might be of interest to Al Qaeda, which considered attacking US nuclear facilities after 9/11, a new study says."

"The government is moving to ban the sale of some popular rat and mouse poisons such as D-Con and Hot Shot in an effort to protect children and pets."