Witnesses at a Senate Hearing testified about many ways in which the world's oceans are already being affected by global warming.

AFP profiles Yvo de Boer, executive secretary of the UN Framework Convention on Climate Change.

An ambitious Chinese plan for a national smart grid could provide an opening for US-China technological cooperation.

The U.S. and China are engaged in bilateral negotiations over greenhouse gas reductions, and a deal may be the key to a global climate treaty.

"The El Nino weather pattern, which can bring global weather chaos such as droughts and floods, could develop within weeks, [NOAA's] Climate Prediction Center ...ssid."

"President Obama may attend world climate talks in Copenhagen this December, marking the first visit to the annual U.N. conference by a sitting U.S. president since George H.W. Bush's 1992 trip to Rio de Janeiro."

"Oil prices on Thursday set a new high for the year, buoyed by a weaker dollar and the first drop in unemployment since January."

"It could save the rainforests of Borneo, slow climate change and the international community backs it. But a plan to pay tropical countries not to chop down trees risks being discredited by opportunists even before it starts."

"Small Pacific islands vulnerable to rising sea levels won a symbolic victory at the United Nations on Wednesday with the passage of a resolution recognizing climate change as a possible threat to security."

"The United States wants to forge a partnership with China, bringing the world's two biggest emitters of greenhouse gases together to address global warming, Washington's top climate diplomat said on Wednesday."