David Keith reviews the science and technology of solar geoengineering, examining its potential to reduce climate risks, associated new risks, and current uncertainties. He proposes integrating

David Keith reviews the science and technology of solar geoengineering, examining its potential to reduce climate risks, associated new risks, and current uncertainties. He proposes integrating solar geoengineering into a comprehensive 4D climate policy, which includes emissions cuts, carbon removal, and adaptation.

A distinguished expert, David Keith is a Harvard Professor of Applied Physics and Public Policy. He founded Carbon Engineering, a company developing technology to capture CO2 for carbon-neutral fuels. Best known for his work on solar geoengineering, he led Harvard's Solar Geoengineering Research Program. He has authored over 200 academic publications and "A Case for Climate Engineering."

The session was moderated by Greg Bronevetsky.

David Giuliani, a Northwest serial entrepreneur and inventor, champions applying entrepreneurial zeal to state-level climate change and carbon reduction. An electrical engineer, he designed early

David Giuliani, a Northwest serial entrepreneur and inventor, champions applying entrepreneurial zeal to state-level climate change and carbon reduction. An electrical engineer, he designed early LED products and secured numerous medical patents. He co-invented and led Sonicare, selling it to Philips, and later co-invented Clarisonic, sold to L'Oreal. He received national Small Business Person and Entrepreneur of the Year awards.

Now, Giuliani applies his talents to societal improvement. With Howard Behar, he founded the Washington Business Alliance, which launched the Low Carbon Prosperity Institute to reframe climate issues as "win-win." This talk was given at a TEDx event. Learn more at https://www.ted.com/tedx.

Dr. David E. Guggenheim, marine biologist and president of 1planet1ocean, addresses critical marine challenges: nutrient pollution, overfishing, and shifting baselines. He provides actionable

Dr. David E. Guggenheim, marine biologist and president of 1planet1ocean, addresses critical marine challenges: nutrient pollution, overfishing, and shifting baselines. He provides actionable insights into current and future solutions.

This discussion was recorded on May 5, 2009, at the Orlando Public Library, as part of his "50 Years 50 States 50 Speeches" tour.

For more information, visit Dr. Guggenheim's website: oceandoctor.org.

Join host Jeff Corwin to celebrate the Endangered Species Act (ESA) and its profound impact on wildlife. The bald eagle, once critically endangered, now thrives as a powerful symbol of

Join host Jeff Corwin to celebrate the Endangered Species Act (ESA) and its profound impact on wildlife. The bald eagle, once critically endangered, now thrives as a powerful symbol of conservation success, thanks to the ESA. This landmark 1973 bipartisan legislation protects vulnerable species and their ecosystems.

Corwin visits Florida's Boca Raton beaches, a vital nesting site for sea turtles. Conservationists Elizabeth Fleming and David Anderson demonstrate how habitat protection is crucial for species like loggerheads. Excavating a nest reveals successful hatchlings, underscoring that safeguarding their environment allows these keystone species to survive. Six of the world's seven sea turtle species nest in America, all protected by the ESA. Learn more at defenders.org/wildlifenation.