Oman's ample stores of peridotite rock could lock away huge volumes of planet-warming carbon, but backers say a price on carbon is needed to make the project viable
Permafrost covers 65% of Russia's landmass, and scientists say that greenhouse gas emissions from its thaw could eventually match or even exceed the EU's industrial emission.
New research warns that the earth may be approaching key tipping points, including the runaway loss of ice sheets, that could fundamentally disrupt the global climate system.