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Use our interactive graphic to find out which countries were using up Earth's resources fastest in 2011, and which ones were taking a lead on renewable energy.

But many research advocates worry that the proposal could backfire in the face of political opposition.

Attempt to reach earthquake source fell short but yielded surprisingly hot rocks.

Nereid submersible expands view of polar ecosystems.

NASA's Orbiting Carbon Observatory-2 overcomes design flaw discovered after launch.

Marine scientist Don Boesch on the fight to restore ecosystems damaged by the Deepwater Horizon disaster.

Other researchers see earlier beginning to the human-dominated age.

Programme will examine effect of Arctic warming on frozen soils.

The director discusses his plans for future ocean exploration and making his technology available to scientists.

Sea-floor sensors will investigate the geological unrest that shook the islands last year.

Tracking lightning in Alaskan explosions could pave way to ash-detection system for air travel.