A thaw point...

There are many stories relating to the Arctic that have been integrated into my teaching over the last few years.
As permafrost starts to lose the permanent bit of its name, and melt, there are a few 'issues' that seem to be more certain to happen as time passes...
Bacteria are released which could contain dormant diseases, and result in new pandemic threats, in a warming world.

These include anthrax spores.

There's also the issue of carbon and methane release
There's a sense that things are accelerating and changes that we were told might happen by 'the end of the century' might happen within the next few decades.