The Montreal Protocol of 1987 placed strict controls on the release of ozone-depleting substances. A new study now shows what would have happened to the ozone layer in the absence of this critically important international treaty — and it wouldn’t have been pretty.
Game theory is a powerful tool for understanding strategic behavior in economics, business, and politics. But some experts say its true power may lie in its ability to help us navigate a perilous future.
What would be a way to deflect asteroid Apophis if it gets a little too close for comfort in 2029 or 2036? Pew-pew it with 5 tons of white paintballs. Not only would the multiple mini impacts bump the asteroid off course, but the white paint would cover the surface and reflect more sunlight, and over time, the…
A report just published in Nature by a group of 22 international scientists warns that human activity is quickly pushing the planet to a tipping point, after which time the Earth's ecosystem will suffer a rapid and irreversible collapse. What's worse: They suggest we're nearly there.