Scientists keep studying creative ways to reduce global warming, and on Wednesday they highlighted another possibility: Making clouds over the oceans thicker and brighter. This would involve a fleet ...

Earth is reflecting less sunlight, and absorbing more heat, than it did several decades ago. Global warming is advancing faster than climate models predicted, with observed temperatures exceeding ...

As an extreme drought grips Mexico, leading to crop losses, a lack of water and higher food prices, the government is trying to bring desperately-needed rain by turning to a controversial technology: ...