"Just a day before President Obama announced he would only approve the Keystone XL pipeline if it 'does not significantly exacerbate the climate problem,' six environmental groups quietly lodged a protest with the State Department charging it would do exactly that."
"A potentially deadly heat wave is expected to bear down on some Arizona and California desert areas in the next few days, forecasters said on Wednesday."
"Every year, people add 30 billion tons of carbon dioxide to the air, mostly by burning fossil fuels. That's contributing to climate change. A few scientists have been dreaming about ways to pull some of that CO2 out of the air, but face stiff skepticism and major hurdles. This is the story of one scientist who's pressing ahead."
"Sen. Joe Manchin (D-W.Va.) blasted President Obama's proposals to address climate change, saying new regulations on power plants would unfairly burden the coal industry."
"Yes, such a group exists. It thinks the world is flat -- but also getting warmer."
"President Obama set a high bar for approval of the controversial Keystone XL pipeline, declaring for the first time that he would let the project go forward only if it does not 'significantly increase' emissions of greenhouse gases."
"WASHINGTON -- President Obama, declaring that 'Americans across the country are already paying the price of inaction,' announced sweeping measures on Tuesday to reduce greenhouse gas pollution and prepare the nation for a future of rising temperatures."
"U.S. Secretary of State John Kerry urged fast-growing India to work with Washington to tackle climate change and develop green technologies, on the eve of talks on trade and regional security."
"Scientists say the Mackenzie River and its tributaries play a crucial role in cooling a warming climate, acting as a 'climate stabilizer.'"
"TAYLORVILLE, Ill. -- A Nebraska company dropped plans to build a $3.5 billion coal-based power plant in central Illinois, saying it instead will focus on developing natural gas-fueled and renewable facilities elsewhere."