Could captured carbon dioxide be stored in the deep ocean? © Getty Images

Could captured carbon dioxide be stored in the deep ocean?

We can’t just chuck carbon dioxide into the oceans to prevent global warming.

Asked by: Mark Cooper, Manchester

Advertisement

Capturing carbon dioxide (CO2) to stop it boosting global warming seems a good idea, but raises the problem of where to store the stuff. One low-cost solution is simply to pump it into the deep ocean, but CO2 is toxic to marine life and would also combine with the seawater to produce an acid, which would pose unknown environmental risks. Underground or sub-seabed storage are thought be less risky options.


Advertisement

Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.