News tagged with tropical countries

Climate cycles are driving wars, says study

In the first study of its kind, researchers have linked a natural global climate cycle to periodic increases in warfare. The arrival of El Niño, which every three to seven years boosts temperatures and ...

Aug 24, 2011
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Dengue vaccine could be ready by 2015: Sanofi

French drugs group Sanofi said Friday that its vaccine against dengue, a mosquito-borne infection that kills thousands of people around the world each year, could be launched in about four years.

Jun 10, 2011
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