Expectations are high that the next U.S. president will take stronger steps on climate change.

The gathering of the world’s top emitters under White House auspices yielded more positive reviews than the first, if no concrete results.

Climate change poses major problems for some of the world’s established wineries, but grape growers see a future in Canada, Britain, and other cooler regions.

The compromise deal in Bali moves the global agenda forward, but U.S. policy remains fractured, and U.S. localities are adopting their own plans as Washington wrangles.

Work begins on the future of global climate change policy with the world’s largest nations divided on key issues, including the U.S. resistance to mandatory emissions caps.

The EU has added airlines to its greenhouse gas reduction scheme, but the United States and the aviation industry say this violates international law.

A gathering of the world’s top greenhouse-gas emitters provides President Bush an opportunity to recast his administration’s approach to climate change, but skepticism remains high.

Hailed for saving the ozone layer, the 1987 Montreal Protocol is attracting fresh attention as a weapon against climate change.

Two years after Hurricane Katrina, U.S. cities still struggle to safeguard themselves against such natural disasters.

As the G8 Summit closes, leaders can cite some progress on contentious issues like climate change and missile defense. But others wonder if anything of substance will result. 

With G8 leaders to meet in Germany, Russia is roiling tensions over missile defense, and disagreements persist on climate change.

Buoyed by the private sector, lawmakers appear more ready than ever to consider emissions controls linked to climate change.

Environmentalists heralded the power shift in Washington with optimism and expectations of a new, greener Congress. But environmental legislation—particularly on global warming—still looks like a tough sell to many legislators on both sides of the aisle.

While California may not be getting much attention at this year's UN climate talks in Doha, "California's new cap-and-trade system is perhaps the biggest good news climate story this year, and delegates in Doha should be celebrating it," says Michael A. Levi.

Michael A. Levi says the U.S. economy was to blame for the Senate's failure to pass a climate bill.

Michael A. Levi discusses a recent study on climate expert credibility.

Michael A. Levi and Katherine Michonski discuss the consequences of the World Bank's refusal to fund a controversial coal-fired power plant in South Africa.

If the objective of climate change policies is to be achieved, within a generation the way in which
energy is produced and used will have to have changed totally, write Antony Froggatt and Michael Levi.

Michael Levi proposes the creation of a new multilateral mechanism for climate policy review, so as to better evaluate the success understand the viability of the climate policies of both developing and developed nations.

David G. Victor explains, "Climate Accession Deals could encourage large policy shifts that are in developing countries' interests and also reduce greenhouse gas emissions."