This is the kind of investment in technology I think Bill & Melinda Gates should be remembered by, as well as their investment in vaccines and contraception. Great stuff ( and well done to the inventor)
These days I think almost all resources should be thrown into inventing and developing carbon capture technologies.
I don't mean to belittle the achievement or sound harsh, but when thinking of priorities one has to consider what will happen if something is not done.
[1] Hint we can't do this via the raw growth and exploitation used to lift the first billion people out of poverty.
Those 2-3 billion people on earth you mentioned? Most of those live in the tropical zones and if we do not concentrate on fighting climate change NOW, will not have a place to live. Healthcare will be a secondary issue.