"The American public is less likely to believe in global warming than it was just five years ago. Yet, paradoxically, scientists are more confident than ever that climate change is real and caused largely by human activities."

"The Supreme Court ruled [Monday] that six states cannot, for now, try to limit emissions of greenhouse gases under federal common law. The court ruled 8-0 -- Justice Sonia Sotomayor was recused -- that the Clean Air Act and the Obama administration's efforts to regulate emissions had displaced the states' federal common law argument."

"The first six months of 2011 have brought image after image of human misery and ecological upheaval. Droughts, wildfires, twisters, floods, heat waves, extreme blizzards — just about every natural disaster you can imagine has hit just about every place on the planet."

"Sometimes it seems hard to believe how much skepticism still exists about climate change, with the scientific community in near-unanimous agreement that yes, it's happening and yes, it's our fault. But as Minnesota State Senator Michael Jungbauer reminded us yesterday, most of that dissent comes from people who are more or less clueless about the science."

"Climate change crept into the discussion of fire management at a Senate Committee on Energy and Natural Resources hearing yesterday, despite Republicans' tiptoeing around the issue."

"A former Republican congressman who is an advocate for action to address climate change plans to launch a new conservative coalition this fall made up of Republicans who, like him, believe that human emissions are triggering global warming and that steps should be taken to stop it."

"Tighter limits on soot and smog provide a quick and easy way to fight global warming while protecting human health and raising crop output, a U.N. study said on Tuesday."

"The Environmental Protection Agency, facing intense opposition from Congressional Republicans and industry over a broad range of new air quality regulations, said Monday that it was delaying by two months the release of a proposed rule on greenhouse gas emissions from power plants and other major pollution sources."

New Jersey is pulling out of the Regional Greenhouse Gas Initiative, and three other states may follow. Why is RGGI on the ropes and who is throwing the punches? RGGI is made up of 10 northeastern states stretching from Maine to Delaware. In 2008, they banded together to form a carbon-trading program for power plants --- a market mechanism that enables utilities to buy and sell emission credits so they can meet caps on the amount of carbon they're allowed to put into the air.

Dengue fever, a painful disease transmitted by mosquitos, is now showing up in Florida for the first time in more than 70 years. Climate change could be a factor.