Why Greenland's melting ice should worry us all

As record-breaking summer temperatures scorched Europe, parts of the Greenland ice sheet have seen their own "mini heatwave." Scientists working at a remote arctic research base 9,000 feet above sea level say the Greenland ice sheet lost an estimated six billion tons of water per-day in July, enough to fill 7.2 million Olympic-sized swimming pools.

Icebergs in Greenland where global warming is having a profound effect. Source: Getty, NurPhoto / Ulrik Pedersen/NurPhoto via Getty Images