"If you look at nature, and I give an example in your own country, if you look to the Rocky Mountains, you find trees all over the mountains.

VOA: special.2010.07.13

Paul Pillar at Georgetown University says if it is not war, then the Obama administration needs to spell out the exact nature of the struggle.

VOA: standard.2010.01.19

When Bill McKibben wrote "The End of Nature" 20 years ago, he thought that if he simply pointed out ecological problems, people would do something about them.

VOA: standard.2010.04.21

The U.S FBI says it is in contact with the families of the five men and is working with Pakistani authorities to determine their identities, the nature of their business in Pakistan,and if indeed the men are the students who went missing late last month.

VOA: standard.2009.12.11