A team using very high resolution satellite pictures counted twice as many emperor penguins in Antarctica than any previous study had.

President Obama formed a new working group in Washington to coordinate federal oversight of fracking.

Those earthquakes in Oklahoma and Arkansas could be caused not just by fracking wastewater disposal but by fracking itself.

In the contest to be the country’s most powerful oil company, Chevron is nipping at ExxonMobil’s heels.

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In the ocean, blue-green algae are loving warming temperatures, and scientists think that could create a positive feedback loop, accelerating climate change.