COP21

World leaders gather for a group photo at the Nov. 30 opening of the UN's global climate summit in Paris. The conference was supposed to adjourn today but with key parts of the text still to be nailed down, negotiations have been extended into the weekend

In Paris, the push for a global climate deal goes into overtime

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After two weeks of talks, negotiators appear on the verge of a breakthrough global deal to address climate change. But with every word of a now nearly 30-page document being parsed by nearly 200 countries, talks have pushed past the Friday evening deadline into the weekend.

More than 30,000 people traveled to the UN's COP21 climate summit in Paris last month from aroudn the world. The UN set up a website where attendees could offset the carbon footprint of their travel.

People who traveled to the Paris climate summit can offset their carbon emissions — but it isn’t easy

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Justin Trudeau

It’s Canada (again)! This time, it’s helping to lead the way to fix the environment

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French Foreign Minister Laurent Fabius (C), president-designate of the UN climate summit, and Christiana Figueres (L), executive secretary of the UN Framework Convention on Climate Change, celebrate during the final session of the World Climate Change Con

The Paris climate deal won’t save the world, but it does give us a chance

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Phan Thi Vietanh, from Hanoi, Vietnam, works for the online newspaper VNExpress.net.

During the Paris climate summit, a youth hostel hosted international journalists from Kenya to Vietnam. Here’s what they wanted to know

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— Miriam Talwisa, executive coordinator, Youth Plus Policy Network | Kampala, Uganda.

In Paris, the young know it’s really up to them to fix the world

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Past the suited diplomats working to make a deal at the Paris summit on climate change are many other voices working to be heard. These Millennials are going to be the real movers and shakers as the next generation has to tackle the real challenges of climate change. We feature their voices here.

Demonstrations in and around Place de la République in Paris on the day before the COP21 climate talks opened.

Paris activists come in many shades of green, and of optimism

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There are thousands of green activists in Paris for the UN climate summit this week. How they feel about the likely outcome depends a lot on whether they represent “big” green or “little” green.

Aile Javo stands in front of a plastic reindeer at COP21.

In Paris, fighting for the reindeer — and a way of life

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Just about every country on Earth is at the negotiating table at the Paris climate summit. But communities that span national borders, like the Sami of far-Northern Europe, can feel shut out.

Solar panel in Mongolia

The most important work at COP21 may have happened out of the spotlight

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The World Bank finances major infrastructure for developing countries, with a primary focus on reducing poverty. In recent years it has recognized the need to address climate change. At the Paris climate conference, the World Bank worked with both public and private sources to fund action on climate change and help vulnerable nations adapt to and mitigate the effects of global warming.

Sue Natali, a climate scientist at Woods Hole Research Center, and her son, Clancy, flew to Paris on Thursday.

Despite concerns following the Paris attacks, this high schooler is still going to the climate conference

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Sue Natali is a climate scientist who’ll be making a presentation at the Paris climate talks this week. Her son Clancy is a 17-year-old student whose school trip to the conference was cancelled after the Paris attacks. But he’s going with his mom anyway, because he feels climate change is an issue that his generation has to take action on.