"House Natural Resources Chairman Nick Rahall (D-W.Va.) hopes to add a major oil and gas title to the Democratic energy and climate bill, but it remains unclear whether he will get the chance as House leaders aim to speed the bill's progress."

Adjustments to cattle feed may help reduce global warming.

"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."

"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."

"A Mexican proposal to raise billions of dollars to fight climate change is winning backing in talks on a new U.N. treaty, paradoxically because no one really likes it, a Mexican official said on Wednesday."

"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."

"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."

Various House committees will try to remake the climate bill in a shape favored by the interests they represent, before it faces more amendments on the floor this summer.

"In the negotiations over the Waxman-Markey climate bill, Rep. Rick Boucher inserted a giant gift to the utility industry. It would create the Carbon Storage Research Corporation and funnel $10 billion to support the corporation over the next 10 years...."

"Canada's rules for cutting greenhouse gas emissions may not come into effect by 2010 as had been planned, Environment Minister Jim Prentice said Thursday."

Delegates in Bonn negotiating a post-Kyoto climate treaty grudgingly accepted a first draft text as a starting point -- despite many reservations.

"The increasing acidity of the world's oceans due to global warming must not be left off the agenda at the United Nations Copenhagen climate negotiations in December, 70 of the world's science academies warned today."

"There are significant questions about the robustness of the numbers at the heart of the new report estimating more than 300,000 deaths are already being caused each year by global warming...."

Refugees from lands made uninhabitable by climate change -- expected in tens of millions -- may soon be threatening peace and security in many parts of the world. The UN is expected soon to address this issue.

"Delegates from 174 countries and 230 nongovernment interest groups meet from Monday through June 12 in Bonn, Germany, in the second of five negotiating conferences to culminate with a final agreement being adopted in December in Copenhagen, Denmark."