See our experts out in the field, getting the job done.

NRDC staff members Dan Lashof & Louisa Willcox discuss the threats global warming poses to Yellowstone National Park.

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• NRDC scientist Dan Lashof & biology professor Diana Tomback discuss the threats global warming poses to the Whitebark Pine, a critical grizzly bear food source in Yellowstone National Park. View video
• Learn more at nrdc.org/land/parks/globalwarming

Louisa Willcox, Director of NRDC's Wild Bears Project, recounts a tale of viewing three grizzly bears at close range in Yellowstone National Park.

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• Learn more at nrdc.org/wildlife

NRDC Vehicle Policy Director, Roland Hwang, discusses clean car technologies as part of the solution to global warming.

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• Learn more at nrdc.org/energy

NRDC staff scientist, Audrey Chang, discusses wind power as part of the solution to global warming.

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• Learn more at nrdc.org/globalwarming and nrdc.org/energy