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.

Clean energy entrepreneur Danny Kennedy explores the promise and challenges of the global transition to renewable energy. He asserts that while the shift is urgent, millions of clean energy

Clean energy entrepreneur Danny Kennedy explores the promise and challenges of the global transition to renewable energy. He asserts that while the shift is urgent, millions of clean energy entrepreneurs and startups, partnered with determined Indigenous leadership worldwide, can achieve this transition in time to avert climate breakdown.

Kennedy, an eco-activist turned clean-technology entrepreneur, is a leading figure in capitalizing on the green economy. He currently serves as CEO of New Energy Nexus, a global nonprofit that provides funds, accelerators, and networks to drive clean energy innovation and adoption.

The energy transition is critical, with the 2020s marking a decisive decade for climate justice. As fossil fuels peak, we must rapidly scale renewables, ensuring an equitable new energy economy.

The energy transition is critical, with the 2020s marking a decisive decade for climate justice. As fossil fuels peak, we must rapidly scale renewables, ensuring an equitable new energy economy. Visionary "green" entrepreneur Danny Kennedy, founder of New Energy Nexus, proposes a "3D" clean energy future: distributed, decentralized in ownership, and democratized in control, driven by global grassroots entrepreneurship.

Kennedy, a seasoned eco-activist and clean-tech leader, co-founded Sungevity and Powerhouse. He now serves as CEO of New Energy Nexus, a global nonprofit providing funds, accelerators, and networks to advance clean energy innovation and adoption worldwide.

Learn more at bioneers.org.

Published on May 19, 2016, Eco Rapper John Romankiewicz unveiled his latest piece, "Occupy Rooftops."

This work champions

Published on May 19, 2016, Eco Rapper John Romankiewicz unveiled his latest piece, "Occupy Rooftops."

This work champions solar energy, reflecting his advocacy as "Sustainable John."

Part 2 of Sustainability Pioneers features companies building a bridge to a renewable energy future. It highlights