Several initiatives are underway to harness the power of the oceans to help combat climate change. 

Our oceans store more CO2 in them than the atmosphere, so a couple ideas people are working on include:

  1. "Supercharging" the ocean's ability to store CO2 and see how much it can potentially hold if we transfer it from the atmosphere down to the water.
  2. Removing CO2 from the ocean so that it seeks to replace it by taking it from the atmosphere, thereby eliminating some of the damage that's been done by fossil fuel pollution.

In any case, these need to work in tandem with other clean energy and sustainability initiatives, but right now we're in a position where any idea can be a good idea.