Climate change is a present reality, demanding urgent action from world leaders.

The Climate Reality Project, collaborating with WPP and UN Secretary-General Ban Ki-moon, launched the

Climate change is a present reality, demanding urgent action from world leaders.

The Climate Reality Project, collaborating with WPP and UN Secretary-General Ban Ki-moon, launched the #WhyWhyNot campaign. This initiative features young people asking "Why? Why Not?" to pressure leaders for meaningful carbon emission reduction commitments.

The campaign urges everyone to pose these fundamental questions to their networks and elected representatives, challenging inaction and vested interests until real change occurs.

Diana H. Wall, a Colorado State University professor, delivered the 2013 Tyler Prize Laureate Lecture at the American Association for the Advancement of Science.

Her lecture highlighted the

Diana H. Wall, a Colorado State University professor, delivered the 2013 Tyler Prize Laureate Lecture at the American Association for the Advancement of Science.

Her lecture highlighted the critical role of soil ecosystems in understanding climate change and pressing environmental challenges, drawing on her extensive research in Antarctica.

Learn more about her work and the 2013 Tyler Prize for Environmental Achievement here.

Conservation Talks feature short clips from leading minds in conservation. In this installment, Dr. Jane Lubchenco, the first female administrator of the National Oceanic and Atmospheric

Conservation Talks feature short clips from leading minds in conservation. In this installment, Dr. Jane Lubchenco, the first female administrator of the National Oceanic and Atmospheric Administration (NOAA), discusses what she sees as the biggest challenge facing conservation science in a rapidly changing world.

Dr. Lubchenco's rare resumé includes serving as the first female president of the International Council for Science, president of the American Association for the Advancement of Science and the Ecological Society of America, and a member of the National Science Board. She is also a Distinguished Professor of Zoology at Oregon State University, with academic residencies at institutions like Stanford and Harvard.

Democracy Now reported on the People's Climate Movement, a historic march in New York City that gathered indigenous, labor, and faith groups. Expected to be the largest climate change protest in

Democracy Now reported on the People's Climate Movement, a historic march in New York City that gathered indigenous, labor, and faith groups. Expected to be the largest climate change protest in history, organizers anticipated over 100,000 participants.

This massive demonstration, part of 2,000 global solidarity events, occurred ahead of a United Nations climate summit. The broadcast featured discussions with key leaders from the labor, indigenous, faith, and climate justice communities. Watch the full segment on Democracy Now.

The 2014 Charles David Keeling Annual Lecture, "Getting Serious About Climate Change," featured Professor David Victor.

A political

The 2014 Charles David Keeling Annual Lecture, "Getting Serious About Climate Change," featured Professor David Victor.

A political scientist from UCSD's School of International Relations and Pacific Studies, Professor Victor is a recognized leader in energy and climate change policy research. He directs the school's new Laboratory on International Law and Regulation and authored "Global Warming Gridlock: Creating More Effective Strategies for Protecting the Planet."

This lecture is part of the "Perspectives on Ocean Science" series. Visit UCTV.tv for more details.