The Download: the solar geoengineering race, and future gazing with the The Simpsons

—David Keith is the professor of geophysical sciences at the University of Chicago and Daniele Visioni is an assistant professor of earth and atmospheric sciences at Cornell University

Last week, an American-Israeli company that claims it’s developed proprietary technology to cool the planet announced it had raised $60 million, by far the largest known venture capital round to date for a solar geoengineering startup.

The company, Stardust, says the funding will enable it to develop a system that…