Failure to rein in climate change and bolster sea defences could jeopardize up to a fifth of the world's economic output by the end of the century, as flooding threatens coastal countries worldwide, according to a study released on Thursday.
In decades to come, African farmers may pool their money to buy small robot vehicles to weed their fields or drones that can hover to squirt a few drops of pesticide only where needed.
More than 1.5 million people were ordered to evacuate their homes along the U.S. Atlantic coast as Hurricane Florence, a Category 4 storm and the most powerful to menace the Carolinas in nearly three decades, barreled in on Tuesday.
