COP21

Anne Hidalgo promises that the world's cities remain committed to tackling climate change.

More than 150 countries will commit to the pact, which calls for a rapid end to the rise of greenhouse gas emissions.

Despite major strides in economic development over the past decade, Ethiopia is still succumbing to drought.

Nearly 60 percent of Republicans said they approved of U.S. efforts to work with other nations to limit global warming,

The lesson of COP21 is that we can't wait for COP22 to solve the climate crisis.

Paris should come up in tonight's debate, if only to ask Republicans about the backlash to their proposal to pull out of the deal.

People are divided on what to make of the rest of the dense, 31-page document.

The Paris talks have given us a long-shot chance to save the planet.

The deal is a big step forward and at the same time a frustrating set of compromises and omissions.

Keep dreaming of a white Christmas.

Paris looks like a success because its organizers downplayed expectations for any deal.

Is this the moment that the rise of the oceans begins to slow?

"Our responsibility to history is immense," French Foreign Minister Laurent Fabius said.

The sticking points have been finance, pace and ambition.

Tension is rising between the US and China as the deadline for a climate deal approaches.

If the precise mechanisms for curtailing carbon emissions—and holding countries accountable—aren't hashed out in the conference's final hours, the goal of limiting warming to 1.5 or even 2 degrees is worthless.

The tiny island nation has a lot at stake.

The talks in Paris have been extended an extra day, with a binding agreement on the horizon.

It's 12 letters long and unpronounceable.

The US and other countries want to set a lower limit for global warming. But will that promise actually mean anything?

Concerns over the substantive financial risks that are accompanying the vast scale of natural disruptions wrought by climate change are increasingly making their way into some of the world's top financial institutions.

Negotiators just took a big step forward in the fight against global warming.

Negotiators are relying on fuzzy accounting as the deadline for a deal approaches.

The announcement marks the first red alert in the city's history.

If the people lead, hopefully the so-called leaders will follow.

John Kerry's promise of $861 million by 2020 marks a final push by the United States to reach a global climate deal.

Saudi Arabians are suffering from the impacts of climate change, but their government is deadset on perpetuating the Kingdom's fossil fuel economy.

It is one of the few things that can drastically reshape our world, altering it forever

A host of Californian political and business leaders are Paris to tout their state's success as a carbon-slashing powerhouse.

A Chatham House report says shifting to a plant-based diet could drastically lower global greenhouse gas emissions.