York researchers publish major study on crisis in Yemen

Facing the complexities of popular unrest, the threat of civil war and the continuing war on terror, Yemen poses both a major concern and challenging dilemmas for international policy makers.

Climate flux matched Europe's social rise and fall

Ancient tree rings show links between climate change and major events in human history, like migrations, plagues and the rise and fall of empires, said a study this week in the journal Science.

Climate change could boost incidence of civil war in Africa

Climate change could increase the likelihood of civil war in sub-Saharan Africa by over 50 percent within the next two decades, according to a new study led by a team of researchers at University of California, Berkeley, ...

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