Chemicals

Negotiations over an international treaty to combat mercury emissions will reach a climax next month in Geneva.

"Representative Edward Markey and some of his congressional colleagues are imploring the US Food and Drug Administration to investigate hair straightening treatments, such as the popular Brazilian Blowout, that contain formaldehyde, a carcinogen. ..."

"Major retailers are violating California law by failing to warn consumers about diaper-changing pads, nap mats and other baby products made with unsafe levels of a flame retardant linked to cancer, according to legal notices expected to be filed Thursday."

"Hospitals are on red alert and parts of Buenos Aires have been evacuated as a toxic cloud descends upon the city."

"About two months after the state's environmental agency ordered a major pet products retailer to immediately cease selling unregistered pesticide products, many of those products remain on the retailer's shelves and website."

"NEW ORLEANS -- A federal judge presiding over litigation spawned by the massive Gulf of Mexico oil spill has dismissed all claims against the manufacturer of a chemical dispersant that was used to break up crude gushing from BP's blown-out well."

"Frustration and inconvenience are growing in Paulsboro as a risky cleanup proceeds at a deliberately slow pace following the derailment Friday of chemical-laden train cars on a bridge over the Mantua Creek."

"PAULSBORO, N.J. -- A freight train derailed Friday on a railroad bridge that has had problems before, toppling tanker cars partially into a creek and causing a leak of hazardous gas that was blamed for sickening dozens of people, authorities said."

Cornfields -- which occupy a big fraction of U.S. farmland -- differ from normal ecosystems in that they are nearly sterile ecologically. Breeding and spraying aim to prevent anything from living but corn.

"We'll start in a cornfield — we'll call it an Iowa cornfield in late summer — on a beautiful day. The corn is high. The air is shimmering. There's just one thing missing — and it's a big thing...

...a very big thing, but I won't tell you what, not yet.