Melting Polar Ice Caps
As our planet warms, polar ice caps either melt or don't form to the same extend each winter. More exposed and darker waters absorb more sunlight leading to more global warming, which leads to more polar ice cap melting.
The summer of 2020 saw record breaking heatwaves across the Arctic region resulting in the lowest ever recorded October sea ice levels. Those persistently warm temperatures also caused the thawing of permafrost and sediment on the seabed allowing the release of very high concentrations of methane - in some cases up to 400 times normal levels. So, have we now reached the long anticipated tipping point? These videos from 'Just Have a Think' videographer David Borlace go into details:
- Arctic Methane 2020 - November 2020
- Arctic Disintegration is Worse Than We Thought - September 2020
- Methane - The Arctic’s Hidden Climate Threat - September 2020