SAN FRANCISCO--(BUSINESS WIRE)--For the second year, 100% Cork, a global campaign to raise awareness of cork’s environmental benefits, is providing a free opportunity for anyone to help plant cork saplings. The Earth Day social media campaign runs now through April 22, and each time someone “Likes”, “Shares” or “Follows” 100% Cork on Facebook, Instagram or Twitter, 100% Cork will donate a cork oak sapling to be planted in Melgaco, Portugal. The campaign is being run in partnership with two Port