So it took me a long time to finally watch the last segment, but I did find this documentary from PBS to be very engaging and very informative.
Maybe not so encouraging though…
FWIW, In It for the Gold agrees you should go watch it.
The synopsis is here:
Melting glaciers, rising sea levels, fires, floods and droughts. On the eve of a historic election, award-winning producer and correspondent Martin Smith investigates how the world’s largest corporations and governments are responding to Earth’s looming environmental disaster.