A lack of global action to combat climate change is forcing scientists to explore measures that might have been considered unethical a decade ago. With carbon dioxide emissions tracking at the high end…

What if the world left it too long to take action on global climate change? Is there a way we could somehow cool the planet before an environmental crisis occurs? Geo-engineering is a potential course…

In the past few years, there has been growing interest in geo-engineering our climate. Geo-engineering means making sometimes planetary-scale physical or chemical changes to alter the amount of heat coming…