Cloud seeding has been going on for decades as a tool to boost water supplies. Only now has a scientific study proven the process actually works. But as atmospheric scientist Jeffrey French explains, another big question looms: How effective is it?
Winters in the Southeast have been abnormally cold since the 1950s. Does that mean global warming is a hoax? No, say scientists, who blame the cold on variations in the jet stream, which have create a “hole” in the overall pattern of warming.
Scientists have some sobering news about the future of our planet: Even if humans manage to meet the temperature target set forth in the Paris climate change agreement, record-breaking weather events will become increasingly common around the world.