World Topics

Apr 12, 2015

Canada glaciers may shrink by 70% by 2100

The glaciers of western Canada, one of the world’s most picturesque mountain regions, are likely to largely melt away over just three generations, scientists say. By 2100, the glaciers of Alberta and British Columbia are set to shrink by 75 percent in area compared ...

North, South America joined earlier than thought

Apr 12, 2015

North, South America joined earlier than thought

North and South America joined together between 13 and 15 million years ago — some 10 million years earlier than scientists previously thought, a new study says. The two continents were once separated by a deep strait called the Central American Seaway, which at ...

Child poverty affects brain development

Apr 11, 2015

Child poverty affects brain development

Children of richer, better-educated parents have bigger brains and more cognitive skills than their less-fortunate peers, but social help and teaching can help to overcome the differences, according to a recent study. The distinctions were most profound in regions of the brain supporting language ...

Apr 11, 2015

Hydrogen fuel study reveals corn promise

U.S. scientists said on April 6 that they have found a way to use discarded corn husks and stalks to make cheap hydrogen fuel that doesn’t pollute the environment in the same way as fossil fuels. The advances by a team at Virginia Polytechnic ...