Inventor Saul Griffith looks for elegant ways to make real things, from low-cost eyeglasses to a kite that tows boats. His latest projects include open-source inventions and elegant new ways to generate power.
In 2001, Craig Venter made headlines for sequencing the human genome. In 2003, he started mapping the ocean's biodiversity. And now he's created the first synthetic lifeforms -- microorganisms that can produce alternative fuels.
James Howard Kunstler may be the world’s most outspoken critic of suburban sprawl. He believes the end of the fossil fuels era will soon force a return to smaller-scale, agrarian communities -- and an overhaul of the most destructive features of postwar society.
Kathleen "Katie" McGinty is vice president and chief sustainability and external relations officer for Johnson Controls, a global leader for smart, healthy and sustainable buildings technology. Johnson Controls signed The Climate Pledge in 2021, joining hundreds of leading global companies with a commitment to be net-zero carbon by 2040.