Originally published on Fri February 27, 2015 8:13 pm
As diplomatic relations between the United States and Cuba thaw, the island could see a new wave of tourism — with visitors treated to music and scenery that has been closed to most U.S. residents for more than half a century.
Originally published on Fri February 27, 2015 10:45 am
Scientists have learned a lot about our distant ancestors from DNA that's thousands of years old. Like the fact that we've inherited some Neanderthal DNA, so apparently our ancestors mated with them. Now there's new research from DNA that moves on from paleo-mating to paleo-eating.
About 10,000 years ago, hunter-gatherers in the Near East figured out how to grow cereal crops like wheat. The farming culture spread, and wherever it went, people traded in their spears for plows.
That's the conventional view. Apparently, it was more complicated than that.
The Alaskan tundra might not seem like much of an agricultural hotspot, but one farmer in the frigid town of Bethel believes he's found America's newest breadbasket.
For the last 10 years, Tim Meyers has been coaxing an enviable quantity of fruits and veggies from just four acres of land. Last year, he produced 50,000 pounds of potatoes, beets, carrots and other vegetables. He sells it at his year-round biweekly market and to local grocery stores.
Originally published on Thu February 26, 2015 2:19 pm
China's pollution is epic enough that even the mayor of Beijing said his city "is not livable" because of its noxious smog.
But a new study, published Saturday in the Economic& Political Weekly, shows that 660 million people — half the population — live in areas where fine particulate matter pollution is above levels considered safe under Indian standards.
Originally published on Tue February 24, 2015 4:40 pm
Updated at 4:04 p.m. ET
The White House has notified the Senate that President Obama has, as promised, vetoed congressional legislation to approve the Keystone XL pipeline project.
"Through this bill, the United States Congress attempts to circumvent longstanding and proven processes for determining whether or not building and operating a cross-border pipeline serves the national interest," Obama said in the notification to the Senate.
Originally published on Tue February 24, 2015 9:48 am
The love between two ferns knows few bounds, it appears. A DNA analysis of a hybrid fern shows that its parents are two different species separated by nearly 60 million years of evolution.
"A 60 million year divergence is approximately equivalent to a human mating with a lemur," says Carl Rothfels, a fern researcher at the University of British Columbia, who headed the study. The hybrid is a record, he says.