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.

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

"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.

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.

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.

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

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

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

The impact that animal agriculture has on our planet cannot be underestimated.

Time is running out for delegates to reach a universally binding agreement on climate change

But with emissions still on the rise in many countries, the plateau is likely to be temporary.

Intense smog levels are expected to last until Thursday afternoon.

Oceans produce most of the oxygen we breathe, and they are threatened by climate change.

The military and intelligence communities agree that climate change is real and destabilizing.

Actor and activist says that it's possible to halt some of the devastating effects of climate change

We've been waiting years for this moment, says Ken Berlin, president of Al Gore's Climate Reality Project. Let's make it count.

Turkey denies Putin's claims that ISIS oil flows through its territory and plane was downed to protect supply

There are just a few minutes on the clock, says Ed Begley Jr., but the game is definitely not over

Because France declared a state of emergency, public marches and demonstrations have officially been banned during COP21. But environmental activists rallied anyway, leading to clashes with riot police.

The Paris climate change conference on Monday must address US communities like Barrow, under assault from the weather.

Beyond reusing and recycling, the COP 21 talks should focus on changing the concept of ownership.