Wednesday, September 3, 2014

China recently announced that it would reduce CO2 emissions per unit GDP (carbon intensity of the economy) by 40-45% by 2020. This is quite ambitious. Given continued economic growth of about 8%/yr (not a given, but based on recent history), this chart illustrates how this compares with recent changes in carbon intensity:




The gap is due to missing recent data. Nevertheless, the conclusion is clear: this ambitious goal is quite different from business as usual! See more here.

Friday, May 2, 2014

CCS update

See this recent news item in Nature about two coal-burning power plants up/running (soon) with CCS.

Tuesday, March 11, 2014

Batteries and beef

Two nice pieces in nature last week.

Beef: discussion of what can be done to reduce impacts

Batteries: prognosis for improvements in energy density, re-charging, and cost.