"The Alberta government has proposed new environmental rules that would revoke a number of oil sands leases – including those which already have active projects – in an effort to protect sensitive habitat, wildlife and forest land in the most industrialized area of the province."

"In case there was any doubt, the White House on Tuesday issued a formal statement opposing a bill now before the House that would bar the Environmental Protection Agency from regulating greenhouse gases for the purpose of combating climate change." The House could pass it as soon as Wednesday, April 6.

Five top executives at Transocean, the company that owned the Deepwater Horizon drilling rig that exploded and sank in the Gulf of Mexico, gave up some $250,000 of the $898,282 in bonuses they received this month. The firm had been criticized for claiming a "best year" in safety of operations after 11 people died on the rig. One quarter of the bonus amount was explicitly tied to safety.

"United States government engineers sent to help with the crisis in Japan are warning that the troubled nuclear plant there is facing a wide array of fresh threats that could persist indefinitely, and that in some cases are expected to increase as a result of the very measures being taken to keep the plant stable, according to a confidential assessment prepared by the Nuclear Regulatory Commission."