[erikpukinskis]

Many of us are working on it. It's a very difficult problem because so many aspects of the carbon economy are intertwined and baked into culture now. The "halo" effect around petroleum is extremely strong and disincents many incremental advances. Could be solved top-down with a carbon tax but that's a big change and beneficiaries status quo have more of an advantage the bigger the system change being attempted.

However many people are trying and failing anyway, and that creates a bed of appropriate technologies that eventually will stand on their own, and perhaps not too much slower than a top-down solution would work.