Senator Bernie Sanders to Join 350.org in Launch of Fossil Free U.S. Campaign the Day After the State of the Union WASHINGTON - Senator Bernie Sanders will join prominent climate activists to kick off a new campaign to take on the Trump Administration and the fossil fuel industry on . The event, Fossil Free Fast: The Climate Resistance, launches Fossil Free U.S , a campaign led by 350.org , calling for an immediate halt to all fossil fuel projects and a fast and just transition to 100% renewable energy for all.