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Q2 (out of 4): Francoise Gaill (invited expert) said in a recent interview that the ocean working as a carbon pump was the last “buffer against climate change.” Yet she also emphasizes (in another interview) that we know very little about the functioning of this pump and its real capacities, and more particularly we don’t know how the reservoirs of this carbon pump really function in the deep ocean. Scientists today seem resigned to climate change, which appears as inevitable at this point (see Jean Jouzel interview). The question – beyond trying to limit temperature rise – might therefore be how can we adapt to such a change and eventually thwart it with engineered means? In their report (see below) Laurent Bopp and Chris Bowler mention that some “studies have suggested that an artificial enhancement of the ocean carbon pump might improve carbon sequestration in the ocean, thus counterbalancing CO2-induced climate change.” All other things considered (temperature rise consequences, acidification etc.), shouldn’t we refocus at least some of our environmental investment efforts into R&D to better understand and eventually re-engineer this “last buffer” (the pump) in order to enhance its capacities and processing capabilities of carbon? (this is obviously not a one-size-fit all long term solution but could perhaps buy humanity some precious time)

 

Sources:

Ocean & Climate – Océan et climat par Francoise Gaill et Jean Jouzel: https://www.youtube.com/watch?v=oVlIDhEiriA

Institut océanographique Paul Ricard – Interview Françoise Gaill (video): https://www.youtube.com/watch?v=M7ZGgVip5HM

The Ocean – a Carbon Pump (PDF): http://www.ocean-climate.org/wp-content/uploads/2017/03/ocean-carbon-pump_07-2.pdf