Environmental scientist James Lovelock told his audience that "The positive feedback on heating from the melting of floating Arctic and Antarctic ice alone is causing an acceleration of system-driven heating whose total will soon or already be greater than that from all of the pollution carbon dioxide (CO2) that we have so far added".

We can hope that Lovelock's back-of-the-envelope figuring is off by an order of magnitude or two but I'd not bet on it.

This from "Climate Code Red".

Deeply disturbing. Indeed.

While we focus on linearly increasing CO2, it's going to be some unforseen secondary side-effect that whacks us. Not the marginally overloaded truck or the driver with the suspended license, but the log that swings out as the truck goes around a turn.