Biodiversity#7: Coral: (very simply) little polyps 1-3mm across (bit like jelly fish without tentacles), convert sunlight into energy and excrete some calcium carbonate – which is what builds the reef that they live in. Major threats include sea temperature rises, causing bleaching effects where the polyps leave their limestone homes; and ocean acidification (acid dissolves limestone) caused by the oceans absorbing more carbon from the atmosphere. Here’s a little clip of a coral reef worth closing a coal mine for. youtu.be/bVXIBmG2vyg
Posted on: Mon, 08 Sep 2014 07:00:00 +0000
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