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 6:54 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 5:57 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.
Hypermacho but tongue-in-cheek, the first 20 minutes of 2 Guns are enormous fun. Tough guys Bobby and Stig (Denzel Washington and Mark Wahlberg) bicker and flirt — with a pretty diner waitress, and with each other — while casing a small-town Texas bank.
Then they set the diner on fire, don masks, and knock over the bank for $43 million, all while taking care to save any cops from getting hurt and even kissing an available baby. The heist, it would seem, has gone according to plan. Yet something's a little off.
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.