"President Obama and truck makers reach agreement on fuel economy and pollution standards for big rigs, work trucks and other heavy-duty vehicles."

Texas' record drought will damage entire ecosystems for years to come.

"Carbon offsets neared all-time lows Friday, confirming their status as the world's worst performing commodity, as slumping demand meets rising supply of the U.N. instrument traded under the Kyoto Protocol."

"Major climate talks in South Africa at year-end will be unlikely to strike agreement on a new pact, but will be important in determining the shape of long-term efforts to tackle climate change, a senior U.N. climate official said on Tuesday."

The Natural Resources Defense Council, an environmental group, unveiled an online tool allowing users to look up the potential health effects of climate change by zip code.

"Congress' debt deal leaves climate advocates grappling with a decade of potentially declining environmental budgets and narrowing hopes of attaching a tax on greenhouse gas emissions to pay down the deficit."

The intertwined problems of climate change, drought, desertification, failed states, terrorism, and insurgency are causing a human catastrophe in the Horn of Africa.

"It's official: July was a scorcher. High temperatures in communities across the USA broke or tied records 2,676 times, almost double the number (1,444) of a year ago, the National Weather Service reports."

"Adjusting and adapting to an inevitably warmer world, more far-sighted private companies are moving forward even in the absence of strong government leadership globally and nationally. Understanding, anticipating and managing their risks are becoming those companies’ new, and challenging, reality."