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Global systems

Disease Dilemmas

IB Changing population

Changing Spaces

Disease dilemmas

Climate change

Natural sources of the gas are more abundant than expected and could supply energy needs for centuries, study shows

It does not take a deep scratch beneath the surface to uncover investor nerves

The territory is a treasure trove of minerals and metals, but its forbidding terrain makes it one of the hardest places to mine

Energy dependency turns out not to have been as effective a weapon as Putin thought