"Each year, an ever larger portion of the world’s crops — cassava and corn, sugar and palm oil — is being diverted for biofuels as developed countries pass laws mandating greater use of nonfossil fuels and as emerging powerhouses like China seek new sources of energy to keep their cars and industries running."

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."

"The depletion of the ozone layer shielding Earth from damaging ultraviolet rays has reached an unprecedented low over the Arctic this spring because of harmful chemicals and a cold winter, the U.N. weather agency said Tuesday."

"As the operator of the Fukushima Daiichi Nuclear Power Station continued to dump radioactive water into the Pacific Ocean on Tuesday, company officials said that seawater collected near the facility contained radiation several million times the legal limit."

"Libya warned on Sunday that NATO-led air strikes could cause a 'human and environmental disaster' if they damaged the country's massive Great Man-Made River (GMMR) project."

"The United Nations has suggested three pesticides and three industrial chemicals be put on a trade "watch list" because they can threaten human health and the environment, the U.N.'s Food and Agriculture Organization said on Friday."

Questions are mounting about the possible role of a new family of pesticides, the neonicotinoides, in the "colony collapse disorder" that is decimating commercial honeybees. Will EPA reconsider its approval of those pesticides?

"The Fukushima Daiichi nuclear plant could continue to release dangerous radiation into the air for several months, Japanese officials said Sunday, acknowledging their painstakingly slow progress in the battle to regain control of the badly damaged facility."

"The workers at Japan's stricken nuclear power plant — known as the Fukushima 50 — expect some of them will die within weeks or months, the mother of one has reportedly said."