<http://schema.org/description>
"As Earth day approaches, we should all be aware of the serious problems plaguing the planet like climate change, deforestation, pollution, loss of biodiversity, rising sea levels, oceanic dead zones and the exploding human population."^^<http://www.w3.org/2001/XMLSchema#string>
<http://inhabitat.com/7-biggest-threats-to-the-environment-why-we-still-need-earth-day/>