The nation’s farmers could face severe restrictions on the use of pesticides as environmentalists want the courts to force federal regulators to protect endangered species from the ill effects of agricultural chemicals.

Outlined in red in this true=color image from July 27, 2010, the Bull Fire produced thick plumes of smoke as it burned near the southern edge of the Sequoia National Forest in southern California.

Acquired July 27, 2010, this natural-color image shows haze over Moscow as fires burn in the east-southeast.

The characteristic koalas, kangaroos and wombats of Australia share a common American ancestor, according to genetic research.

Tony Hayward, who became the face of BP’s flailing efforts to contain the massive Gulf oil spill, will step down as chief executive in October and be offered a job with the company’s joint venture in Russia.

In an area of Kenya where bird hunting is common, researchers who only take blood and then let birds go are a puzzle.

Researchers have now developed a method that enables the industrial production of a substance that can be used to replace lead in many electronic applications.

Acquired July 25, 2010, this image shows storm clouds traveling toward the east, passing over Washington, DC.

Two MoJo reporters take on today’s climate news: First, Kate Sheppard on the death of the climate bill—and what’s left in the Dems’ measly energy package. Then, Josh Harkinson on Obama’s role in the carbon cap’s untimely demise.

Acquired July 23, 2010, this natural-color image shows Tropical Storm Bonnie spanning southern Florida.