Changes to the acidity of the Earth's ancient oceans affected the coral reefs more than 50 million years ago. And researchers are using that information to try to predict how the planet might fare in our rapidly changing climate. Above, the Wheeler Reef section of the Great Barrier Reef.
One of the most powerful ways to figure out how the Earth will respond to all the carbon dioxide we're putting into the atmosphere is to look back into the planet's history.
Paleontologists have spent a lot of time trying to understand a time, more than 50 million years ago, when the planet was much hotter than it is today. They're finding that the news isn't all bad when you take the long view.
Originally published on Thu August 1, 2013 7:54 pm
Now that the dust has settled somewhat on the rhetorical skirmish between Rand Paul and Chris Christie over NSA data-gathering, it's easier to see the irony of the confrontation.
We witnessed not just the punching and counterpunching of politicians considered likely contenders for the 2016 GOP nomination. It was also a clash between men who each possess a key to winning the White House.
Originally published on Fri August 2, 2013 6:57 am
Edward Snowden's father, Lonnie, had a dramatic change of heart this week: Back in June, he sent a letter to Attorney General Eric Holder in which he told him that if the U.S. promised not to detain or silence Edward before a trial, his son would be willing to return to the United States.
Originally published on Sat August 3, 2013 8:11 am
Chinese gamers may soon be able to settle by force a thorny international dispute between their government and Japan over who controls a small chain of islands in the East China Sea.
The basic platform of the newly released Glorious Mission Online was developed as a training tool for the People's Liberation Army. Game maker Giant Interactive Group (GIG) has expanded the "first-person shooter" game with a simulation of a Chinese amphibious assault on the Senkaku islands, as they are known in Tokyo, or Diaoyu, as Beijing calls them.
Skiers Jessie Diggins (from left), Kikkan Randall and Sadie Bjornsen finish practice. During the summer, they ski on Eagle Glacier to prepare for competition. It's one of the few places where skiers can train on snow during the summer.
The U.S. women's cross-country ski team has never won an Olympic medal. But that could change in Sochi, Russia, in February. The team has a secret weapon: a pristine glacier high above the mountains of Anchorage.
On the ground, it's summer. But as soon as the helicopter crests the mountain: winter. The snowy white Eagle Glacier stretches out for miles, rimmed by rocky peaks.