Mar 16, 2010

How to save human civilization in 10 easy steps.

This classic Joe Romm post lays out the nitty-gritty:
It would require some 12-14 of Princeton’s “stabilization wedges” — strategies and/or technologies that over a period of a few decades each ultimately reduce projected global carbon emissions by one billion metric tons per year (see technical paper here, less technical one here). These 12-14 wedges are my focus here.

[...]

I do believe only “one” solution exists in this sense — We must deploy every conceivable energy-efficient and low carbon technology that we have today as fast as we can. Princeton’s Pacala and Socolow proposed that this could be done over 50 years, but that is almost certainly too slow.

[...]

This is what the entire planet must achieve:

Here are additional wedges that require some major advances in applied research to be practical and scalable, but are considered plausible by serious analysts, especially post-2030:

  • 1 of geothermal plus other ocean-based renewables (i.e. tidal, wave, and/or ocean thermal)
  • 1 of coal with biomass cofiring plus carbon capture and storage — 400 GW of coal plus 200 GW biomass with CCS
  • 1/2 wedge of next generation nuclear power — 350 GW
  • 1/2 wedge of cellulosic biofuels for long-distance transport and what little aviation remains in 2050 — using 8% of the world’s cropland [or less land if yields significantly increase or algae-to-biofuels proves commercial at large scale].
  • 1 of soils and/or biochar– Apply improved agricultural practices to all existing croplands and/or “charcoal created by pyrolysis of biomass.” Both are controversial today, but may prove scalable strategies.
As my dad would say, as easy as falling off a log backwards.

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