Scientists using GPS technology to study the extent of the western U.S. drought said Thursday the water shortage is causing parts of the Earth's crust to rise.

Some 62 trillion gallons -- equivalent to a six-inch (15-centimeter) layer of water -- have been lost since 2013, causing a slight upward lift across the region, according to the study in the journal Science.

The Old Farmer's Almanac, the familiar, 223-year-old chronicler of climate, folksy advice and fun facts, is predicting a colder winter and warmer summer for much of the nation.

Published Wednesday, the New Hampshire-based almanac predicts a "super-cold" winter in the eastern two-thirds of the country. The west will remain a little bit warmer than normal.

Neanderthals shared Europe with modern humans for as long as five millennia until they died out 40,000 years ago -- "ample time" for cultural exchanges and interbreeding, researchers said on Wednesday.

While there is no evidence that the two groups lived closely together, they did co-exist for anything from 25 to 250 generations, depending on the region, according to a paper published in the journal Nature.

A chemical used in dry cleaning and fire extinguishers may have been phased out in recent years but NASA said Wednesday that carbon tetrachloride (CCl4) is still being spewed into the atmosphere from an unknown source.

The world agreed to stop using CC14 as part of the Vienna Convention on Protection of the Ozone Layer and its Montreal Protocol, which attained universal ratification in 2009.

Seals and sea lions probably brought tuberculosis to the Americas centuries before Christopher Columbus first set foot there, scientists said Wednesday.

A new study challenges the theory that Europeans introduced TB to the New World, where it killed millions of indigenous Americans along with other foreign diseases like whooping cough, chicken pox and flu.

They slipped into southwest France 10 years ago in a pottery shipment from China and have since invaded more than half the country, which is fighting back with drones, poisoned rods and even chickens.

The Asian hornet, or vespa velutina nigrithorax, is considered a "public enemy" in parts of France where it devours native bees and, experts say, threatens biodiversity.

The octopus's ability to camouflage itself has inspired a new kind of thin, flexible fabric that can automatically match patterns, U.S. researchers said Tuesday.

Creatures of the ocean known as cephalopods -- including cuttlefish, squid and octopuses -- are naturally equipped with sensors in their skin that help in some way to mimic the look of their surroundings.

A dearth of rainfall in the Sahel could have "severe consequences" for food and agriculture across the region, a U.N. official said Tuesday, urging urgent action to tackle droughts.

"The countries in the Sahel in general are suffering from a lack of rain this winter, the consequences of which could be severe," Coumba Mar Gadio, Mauritania's U.N. representative, warned at a meeting of regional environment ministers in Nouakchott.

A sprawling market floor in Guangzhou was once a prime location for shark fin, one of China's most expensive delicacies. But now it lies deserted, thanks to a ban from official banquet tables and a celebrity-driven ad campaign.

One shopkeeper at the Shanhaicheng center quietly ate his lunch at a desk, flanked by four glum-looking colleagues and giant white sacks overflowing with thousands of dollars' worth of unsold grey stock.

Authorities in Mexico said Monday they have closed about 80 schools after sulfuric acid leaked from a copper mine in the country's northwest and contaminated the Sonora River.

"About 5,000 students from around 80 schools will not have classes this week because of a lack of water and in some locations their proximity to the river," said the director of the Sonora state civil protection agency, Jesus Arias.