Candidates must be less than 35 years of age and have a PhD or equivalent in chemistry or an interdisciplinary allied area, and must have at least three publications in recognised scientific journals.

UNESCO: Apply for UNESCO Prizes

The number of people over 65 will be equivalent to 60% of the working-age population in Europe in 2050, compared with only 40% in America.

ECONOMIST: Demography and the West: Half a billion Americans? | The

"In this Internet day and age, just assume that everything you put out into the ethers in writing is the equivalent of LiveJournals of yore, " said Brenna Ehrlich, a senior editor at MTV and a CNN Tech contributor who has written about online etiquette.

CNN: Lessons from the sorority-girl e-mail rant