The two-degree pledge on climate change made by the G8 is nonbinding, hard to translate to a specific level of greenhouse gases in the atmosphere ... and perhaps wishful thinking.

The green tech that many clamor for requires some very exotic mineral ingredients -- and mining them has environmental consequences.

"Climate change could push dengue fever into all corners of the United States, as the mosquitoes that can carry the traditionally tropical virus survive warmer U.S. winters .... scientists at the Natural Resources Defense Council said in a report."

The Government Accountability Office, testifying before a Congressional committee, urged the Food and Drug Administration to stiffen oversight of bottled water and give consumers more information about what they are drinking.

"Pollution from burning wood in stoves, fireplaces and elsewhere is the top cancer risk in Oregon's air, according to a U.S. Environmental Protection Agency analysis."

"After one of the longest sunspot droughts in modern times, solar activity picked up quickly over the weekend."

"A federal appeals court yesterday upheld nearly all U.S. EPA designations of areas where airborne soot concentrations exceed national standards, rejecting challenges from state and local governments and industry groups."

""The two key arguments that the oil and gas industry is using to fight federal regulation of the natural gas drilling process called hydraulic fracturing -- that the costs would cripple their business and that state regulations are already strong -- are challenged by the same data and reports the industry is using to bolster its position."

T. Boone Pickens postponed a plan to create the world's largest wind farm in Texas. The billionaire had spent $60 million advertising his plan to combat what he calls the United States' addiction to foreign oil.

"The Pennsylvania Department of Environmental Protection is working to regulate salt discharges that result from natural-gas drilling."