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The number is expected to reach 99 percent by 2050.
ENVIRONMENT
A fast-spreading bacterial disease might someday destroy the citrus industry.
Environmentalists protested the development of a road on both environmental and mystical grounds.
Litter ruins the psychological benefits people otherwise get from looking at natural landscapes, psychologists find.
Inscriptions written on the walls of a cave in central China document seven major droughts over nearly 500 years.
There are several thousand species of fleas around the world—and 300 of these bloodsucking pests call the U.S. home.
When illegal palm trees are planted in protected Indonesian forest, Rudi Putra grabs a chainsaw.
Remember how scared we were of satanic cults, Y2K, and nuclear war? (Okay, we're still scared of nuclear war.)
If they can make it here, they'll make it anywhere.
If we asked you to picture a mountain, you’d probably imagine something that kind of looks like a pyramid, right? But it turns out mountains are a lot more varied than we knew.
More than 60 billion LEGO pieces were produced in 2014 alone. It takes more than 6000 tons of plastic each year to make that many bricks.
The super-efficient heatless dryer uses up to 10 times less energy than the standard tumble dryer—and may finish the job 20 minutes faster.
