Intheadvanceofthemovement, the humoroussaying has acquired aproverbial currency, "Quitting smokingisthe easiestthingworld. I'vedone it hundreds of time."
For example, The Now Network doesn't lift aproverbial finger when a phone is ordered -- UPS takes care of plucking the right handset from its inventory and shipping it off to a customer.
Since the Arctic as a whole is responding to climate change earlier and more acutely than the rest of the planet, we should think of it as an early warning system -- aproverbial canary in a coalmine.