00:00The world is warming. That's a fact.
00:02So why do scientists say that one day we might walk from the UK to Norway on an ice road?
00:07Here's the answer. Amok.
00:09The Amok is like a giant heat highway.
00:11Warm water flows from the tropics to Europe and keeps winters mild here.
00:16Near Greenland, it cools down, gets salty and sinks.
00:19That's how the system keeps moving.
00:21But here's the problem.
00:22As the Arctic warms, Greenland's ice melts.
00:25Fresh water pours into the ocean.
00:27Fresh water is lighter. It doesn't sink.
00:30That slows the whole system down.
00:32If the Amok weakens enough or collapses, less heat reaches Europe.
00:36The result? Much colder winters in a world that's still getting hotter.
00:40Scientists agree Amok is weakening.
00:42If or when it collapses is still debated.
00:45The day after tomorrow made it look dramatic.
00:48Real life would be slower, quieter.
00:50But the good news is, we still get to choose the ending.
Comments