U.N. -Arab League envoy Kofi Annan says the Syrian army and rebels must end all violence by 6 a.m. Syrian time on April 12 if the government meets its agreed deadline to halt fighting two days earlier.
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A radical proposal to modify physique and behaviour in response to climate change has been greeted with outrage
People who are excluded by others online, such as on Facebook, may feel just as bad as if they had been excluded in person, according to researchers at Penn State and Misericordia Universit
Hundreds of landmarks from Berlin's Brandenburg Gate to the Great Wall of China went dark on Saturday night as part of a global effort to highlight climate change.