Save Our Seas Supported Project Leader Professor Jason Hall-Spencer is an authority on ocean acidification.

Our seas currently absorb over 25 million tons of CO2 every day.  This has caused surface waters to become 30% more acidic since wide-spread burning of fossil fuels began.  As well as lowering pH, increased CO2 levels are altering surface water chemistry.  Falling carbonate levels are a major conservation concern since these are the building-blocks of shells for marine organisms from tiny coccolithophores to giant coral reefs.

Recently, Jason was interviewed during Rio+20 - United Nations Conference on Sustainable Development.

Jason speaks about ocean acidification, why this is such a major threat and how important research in this field is. The interview can be watched here:

http://www.largeblue.co.uk/extranet/greentv/rio/Jason_Hall-Spencer_02.mp4