Ok Bernie, lead by example. No more cars, planes, busses. WALK EVERYWHERE.
No more heated hotel rooms, sleep in a tent. Not just any tent, a cloth tent made by hand. Can't be sleeping in a tent that contains any petroleum based products or was machine made can we? Why, that'd mean energy was used, likely from OIL, to make that tent.
No more hot food for you either Bernie. Unless you can chop down the wood and build a fire to cook over --- no more petroleum based heating oil or natural gas for you. Unless you fart. You can fart, light that, and cook with your lit farts --- not sure you'll like that aftertaste though. On second thought, with your head so far up your ass Bernie it's unlikely you'll be able to tell the difference!
#FeelTheStupidItBERNS
No more electric-powered public address either. And no video broadcasts.