Ruchi Jain, 23, was working as a marketer in Mumbai, India, when she left her job to become a full-time climate activist. Today she works with the Indian Youth Climate Network and 350.org, and she traveled to Copenhagen in December to participate in the climate talks. I followed Jain during the two-week conference as she rallied other youth activists and testified before UNFCCC Executive Secretary Yvo de Boer. I found out why she gave up her marketing career and why – like many youth around the world – she now has her eyes on the United States Senate. Sara Peach …

Youth activists were beaten by police this morning in Copenhagen after they marched out of the Bella Center, shouting "Reclaim power!" and "Climate justice now!" During the second week of the COP15 talks in Copenhagen, the number of activists allowed to attend the talks has been drastically reduced. By Friday, when President Obama arrives, the number of nongovernmental "observers," the UN group to which most of the activists belong, will be reduced to just 90. A mix of frustrated indigenous, youth, and environmental activists walked out of the talks this morning at about 11 a.m. local time. Once outside, the …

Saturday's mass march to the Bella Center, where climate talks are ongoing, was boisterous and colorful, but largely peaceful. I expect that the tone of the demonstrations will shift in the next week as climate activists make a last-ditch push for a strong treaty. Climate Justice Action, an anti-corporate network, is calling on activists to disrupt the negotiations at the Bella Center next Wednesday and to transform it into an assembly open to all: There will be a legalized starting point, which will be announced to the media and the police. From there, the climate justice bloc will move on …

Today is "Young and Future Generations Day" at the Copenhagen climate talks, where at least 1,000 youth from dozens of countries are in attendance. So far this week, youth activists have put on dozens of media stunts, such as dressing as green-faced "aliens" and asking passers-by to take them to their climate leaders. Young people are also involved in serious lobbying campaigns behind the scenes. American youth are scheduled to meet with negotiators from the U.S. delegation at 6:30 p.m. (12:30 EST), but press likely won't be allowed to attend. I recently caught up with American activist Brianna Cayo Cotter, …