(TrendHunter.com) In honor of Earth Day (April 22), many brands support the planet and take a stand against climate with sustainable earth day campaigns. One notable example this year comes from Silk, the plant-... (TrendHunter.com) In honor of Earth Day (April 22), many brands support the planet and take a stand against climate with sustainable earth day campaigns. One notable example this year comes from Silk, the plant-...