"NEW YORK -– To combat climate change, a global Compact of Mayors from cities across the world was launched today at the UN Secretary-General’s Climate Summit today at UN Headquarters."

"China has pledged for the first time to take firm action on climate change, telling a UN summit that its emissions, the world's highest, would soon peak."

"French President Francois Hollande on Tuesday announced that France will contribute $1 billion to a near-empty global fund to help poor countries adapt to the effects of climate change as he addressed the United Nation's summit on climate change."

"UNITED NATIONS — President Obama, emboldened by his use of executive powers to fight climate change at home, challenged China on Tuesday to make the same effort to reduce its greenhouse-gas emissions and join a worldwide campaign to curb global warming."

"New York City will be full of planet-saving pomp this coming week, but short on action to rescue the world."

"NEW YORK -- Six international energy companies have agreed to work to reduce emissions of methane, a potent greenhouse gas, in partnership with more than a dozen national governments through a new United Nations framework, according to executives and officials familiar with the program."

"The Rockefellers, who made their vast fortune on oil, and other philanthropies and high-wealth individuals on Monday will announce pledges to divest a total of $50 billion from fossil fuel investments."

"The World Bank said Monday that 73 national and 11 regional governments and some 1,000 companies will join forces to push for policies setting a price on carbon emissions to encourage a shift to cleaner energy technologies."

"In a week that a massive march descended on New York City, in a summer scientists said was the hottest on record, and in a year U.S. officials are trying to curtail carbon pollution, the United Nations is about to begin its Climate Summit 2014."

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