"In a sweeping effort to reduce its environmental impact, New York City is planning to overhaul the energy-efficiency standards of all its public buildings and to pressure private landlords to make similar improvements."

"John D. Rockefeller built a vast fortune on oil. Now his heirs are abandoning fossil fuels."

The U.N. climate summit on Tuesday is likely to be plagued by old North-South divisions.

"Legions of demonstrators frustrated by international inaction on global warming descended on New York City on Sunday, marching through the heart of Manhattan with a message of alarm for world leaders set to gather this week at the United Nations for a summit meeting on climate change."

"Institutional investors managing £15tn of assets have called for an ambitious global climate deal to give them certainty to invest in clean technology."

"In October 2012, Superstorm Sandy wreaked major havoc on the United States, causing 117 deaths and leaving $62 billion worth of damage in its wake when it passed through New York and New Jersey. But Sandy wasn't the strongest storm ever to hit that region, and there is the potential for other, much bigger storms to strike, a new report warns."

"Texas has proposed re-writing school text books to incorporate passages denying the existence of climate change and promoting the discredited views of an ultra-conservative think tank."

"A Reuters analysis finds that flooding is increasing along much of the nation’s coastline, forcing many communities into costly, controversial struggles with a relentless foe."

"More residents of Northern California mountain communities were told to leave their homes on Thursday after an out-of-control wildfire doubled in size overnight, scorching more than 100 square miles of drought-parched timber and brush."

"President Barack Obama will highlight strides the United States has made on climate change when he addresses a major U.N. climate summit next week, senior administration officials said on Thursday."