Yes , but WHO isn ' t realistic at all . What you proposed is far in excess of their budget . You ' re talking about fantasy levels of money . I mean if we are talking fantasies solutions , we would all suddenly give up fossil fuels , agree to shrink global population , help feed everyone , etc . This is why I don ' t advocate solutions . There won ' t be a solution because there will be some downside . We use fossil fuels because it brings a high standard of living . If we had a carbon free way to do that at a lower cost we would do it . The benefits to fossil fuels are so obvious and great that people are hoping for technical solutions that will allow us to keep the exact same standard of living . What people don ' t want to accept is that our freedom and standard of living must go down in the whole if we want to be sustainable . People will not do this voluntarily .