claim: In other words, we have, trapped in Arctic permafrost, twice as much carbon as is currently wrecking the atmosphere of the planet, all of it scheduled to be released at a date that keeps getting moved up, partially in the form of a gas that multiplies its warming power 86 times over.
evidence: Findings show that Greenland has lost 3.8 trillion tonnes of ice since 1992, enough to raise sea levels by almost 11mm (1.06cm).