Scientists warn that a crucial ocean current could collapse, altering global weather

In 2017, chunks of ice broke off from the Greenland ice sheet, creating a swarm of icebergs in a fjord. (David Goldman/Associated Press) Scientists are sounding the alarm as a crucial part of the planet’s climate system is gradually deteriorating and could one day reach a tipping point that would radically change global weather patterns. … Read more

Meltwater infiltrates the Greenland ice sheet through millions of hairline cracks, destabilizing its structure

I walk along the steep bank of a raging whitewater stream, and even though the gorge is only about as wide as a highway, the river’s current speed is greater than that of London’s Thames. The deafening roar and rumble of the rushing water is incredible – a humbling reminder of the raw power of … Read more

Ancient soil beneath a mile of ice offers warnings of the future

About 400,000 years ago, large parts of Greenland were ice-free. The rugged tundra basked in the sun’s rays on the island’s northwestern highlands. There is evidence that a forest of spruce trees, buzzing with insects, covered the southern part of Greenland. Global sea level was then much higher, between 6 and 12 meters above current … Read more