You can't make it up XVI - acid oceans dissolving sea life (26 nov 12)
The Register is generally a skeptical site, so this is probably a parody:
http://www.theregister.co.uk/2012/11/26/acid_oceans_dissolve_pterepod_shells
The boffins at The Register know that the oceans aren't acid, they're alkaline. Or is it basic? I can never remember - anyway, more acidity makes them closer to pH neutral.