This is today's edition of The Download, our weekday newsletter that provides a daily dose of what's going on in the world of technology. Solar geoengineering startups are getting serious Solar ...

As global heating worsens, interest in solar engineering is rising, including from private companies and investors. But the ...

The potential role of solar geoengineering strategies in addressing global warming is a matter of current scientific and societal debate. Some strategies could reduce the surface temperature of Earth, ...

Two scientists argue that the growing commercial efforts to counter climate change by reflecting away sunlight will thwart responsible research in the field. Last week, an American-Israeli company ...

Imagine waking up one morning to discover that someone has been altering the atmosphere above your head without asking. Sounds like science fiction, right? Yet this is precisely the conversation ...

“Plan C for Civilization” takes stock of the amateurs and experts who see promise in using technology to cool the Earth. Two geoengineering projects unfold side by side. Both involve a futuristic ...