Helping breeders quickly develop better varieties of all these crops will be crucial as the world population tops 9 billion by 2050 in the face of a changing climate.

VOA: standard.2010.02.01

Chris Flavin, president of the environmental research group Worldwatch Institute in Washington,said "The world has made enormous progress in changing policies, in investing in new technologies, in general raising awareness about environmental problems.

VOA: standard.2010.01.23

For instance giving the prize to Mikhail Gorbachev for changing the world completely and now to President Obama who is contributing to improve the international climate, to strengthen the international bodies such as the U.N.

VOA: standard.2009.10.09

to say 'get real.' What is dangerous is to commit "This is extraordinary, to spend a whole lot of money that we might not have on a system that most certainly won't help when the world is changing, when we're facing new threats, where now more and more military experts are saying there are different alternatives."

VOA: standard.2010.04.30