Ocean acidification is a terrifying but little-known effect of too much carbon dioxide in the atmosphere, kind of like the Shelob to climate change’s Nazgul. Essentially, carbon dioxide from the atmosphere dissolves into seawater and raises lowers the pH, making the water more acidic. This makes it hard for critters with a calcium carbonate shell or skeleton to live and grow. Who has a calcium carbonate shell? Corals, mussels, oysters, clams, bryozoans, some worms, snails, red algae, some kinds of plankton…almost everything in the ocean either has a calcium carbonate part or lives on or eats something that does. If the ocean gets too acid, entire ecosystems could crash and burn.
That’s why Sven Huseby and the crew behind a new documentary are working to raise awareness of this nasty, nasty problem.
A Sea Change will focus public attention on this urgent but little-known crisis. It follows retired educator and concerned grandfather Sven Huseby back to stunning ancestral sites (Norway, Alaska the Pacific Northwest) where he finds cutting-edge ocean research underway. His journey of self-discovery brings adventure, surprise and revelation to the hard science of acidification.
Check out the preview here. A Sea Change is planning release in early 2009.
(Thanks to A Sea Change for linking to us! That’s how I found out about them.)