If you want to truly grasp the scale of Earth's polar ice sheets, you need some help from Isaac Newton. Newton taught us the universal law of gravitation, which states that all objects are attracted to one another in relation to their masses (and the distance between them).
The ice sheets covering Antarctica and Greenland are incredibly massive—Antarctica's ice is more than two miles thick in places and 5.4 million square miles in extent. These ice sheets are so large, in fact, that gravitational attraction pulls the surrounding ocean toward them. The sea level therefore rises upward at an angle as you approach an ice sheet, and slopes downward and away as you leave its presence.




On Wednesday, conservative activist and controversial video sting artist James O’Keefe made an appearance in Cannes during the Film Festival with a new, secretly recorded 20-minute video that he said exposes the hypocrisy of two environmentalist documentarians and two Hollywood actors.
Who could forget? At the time, in the fall of 2002, there was such a drumbeat of “information” from top figures in the Bush administration about the secret Iraqi program to develop weapons of mass destruction (WMD) and so endanger the United States. And who -- other than a few suckers -- could have doubted that Saddam Hussein was eventually going to get a nuclear weapon?
When roughly 10,000 gallons of chemicals leaked into a West Virginia watershed this January, Governor Earl Ray Tomblin declared a state of emergency. Officials shut down schools, deployed the National Guard, and rallied volunteers to bring water and support to the 300,000 people without potable water.
My legal saga started last summer with a knock at the door, behind which stood two federal agents ready to to serve me with a court order requiring the installation of surveillance equipment on my company's network.
The Obama administration intends to publicly reveal a secret memo outlining its legal justification for using drones to kill U.S. citizens it accuses of terrorism overseas, it emerged Tuesday.
The CIA has ended the use of vaccine programmes in its spying operations amid concerns for the safety of health workers, the White House has said.





























