National Geographic Speakers BureauLisa LingZahi HawassSpencer Wells

Climate Change
The Challenge of Climate Change
Photo: Factory smoke stacks
In a sweeping visual journey, Dimick shares highlights of scientific reports, magazine features, and data from decades spent tracking carbon emissions, sea levels, air and water temperatures, and fuel consumption. He explains in layman's terms the crux of climate change, and most importantly, what we—as individuals, as families, as communities, as companies, and as a nation—can do to reverse the trends.

Dennis Dimick
Executive Editor, National Geographic

The Deep South: Antarctica as Ground Zero for Climate Change
Photo: iceberg
As climate change becomes a global concern Antarctica has become a vast laboratory in which the world's rising temperatures are having observable effects. Stenzel breaks down the facts and figures into something comprehensible for the general public, by introducing us to the beauty and surprising variety of the Antarctic, and showing us the complex web of life that depends upon its stability.

Maria Stenzel
Photographer
Making a Difference—Being True Green
Photo: True Green Book cover
With critical issues like global warming and climate change in the news everyday, it seems that the worldwide challenges we face are too sweeping for individuals' actions to matter. In her National Geographic book series, True Green, Kim McKay tackles this issue head-on, striving to convince both individuals and corporations that even small steps in going green can make a big difference.


Kim McKay
Environmentalist and Author


A Witness to Warming
Photo: polar bear
From the decline of tropical amphibians to the melting of polar ice, Photographer Joel Sartore has seen and photographed the effects of global warming firsthand. See how even a slightly warmer Earth is already having very serious consequences.


Joel Sartore
Photographer

Baffin Island Expedition
Photo: dogsled pack
Educators and explorers Ed Viesturs and Richard Branson joined Will Steger and three Inuit hunters on a 1200-mile (1,931-kilometer), four-month-long dogsled expedition across the Canadian Arctic's Baffin Island. The explorers traveled by Inuit dog teams over traditional hunting paths, up frozen rivers, through steep-sided fjords, over glaciers and ice caps, and across the sea ice to reach some of the most remote Inuit villages of the world to document the Inuit's experience with climate change and its local impact on polar bears. Join Steger for highlights of this expedition and an overview of what he and his team learned along the way.

Will Steger
Polar Explorer



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Photographs by Perter Essick (Dimick), Maria Stenzel (iceberg), Courtesy of National Geographic Books (True Green), Joel Sartore (Sartore), Will Steger Foundation - John Huston (dogs)

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David Doubilet