"The U.S. has long used more energy for air conditioning than all other nations combined. But as demand increases in the world’s warmer regions, global energy consumption for air conditioning is expected to continue to rise dramatically and could have a major impact on climate change."

"Evidence showing that cap and trade can bolster a new revenue stream has some state and federal officials quietly seeking answers."

"HOUSTON -- A Texas judge has ruled that the atmosphere and air must be protected for public use, just like water, which could help attorneys tasked with arguing climate change lawsuits designed to force states to cut emissions."

"A conservative group that has used public records requests in an attempt to publicize emails written by climate scientists has turned its attention to reporters who cover the environment."

"A record drought in northern Mexico has prompted warnings that the region's climate may have changed for good."

"Some of the weather extremes bedeviling people around the world have become far more likely because of human-induced global warming, researchers reported on Tuesday. Yet they ruled it out as a cause of last year’s devastating floods in Thailand, one of the most striking weather events of recent years."

"As far back as records go (1895), never has the U.S. strung together 12 straight months warmer than May 2011 to April 2012 according to new data released today by NOAA’s National Climatic Data Center (NCDC)."

"Long respected by his professional peers around the world, [scientist Michael] Mann became more widely known as one of the targets of the so-called and now discredited 'climategate scandal,' involving hacked emails of several prominent climate scientists. Mann's science and professional conduct (and that of others so targeted) have been repeatedly exonerated by independent professional review."

"According to Professor Ian Simmonds of the University of Melbourne, it is a combination of the melting sea ice and the atmospheric warming that is happening globally that is responsible for the high rate of warming in the Arctic."