The G7 governments saying they will phase out fossil fuels by 2100 isn’t closing the barn door after the horse has left. It is declaring an intention to consider closing the barn door after waiting for the horse to disappear over the horizon. It is okay to be feel underwhelmed by this.
The Group of 7 summit held earlier this month in Germany, representing seven of the world’s largest economies, ended with a declaration that these governments would commit themselves to a 40 to 70 percent reduction in greenhouse-gas emissions and a complete phaseout in 2100, and an invitation for “all countries to join us in this endeavor.” A communiqué issued after the summit declared:
“We commit to doing our part to achieve a low-carbon global economy in the long-term including developing and deploying innovative technologies striving for a transformation of the energy sectors by 2050. … To this end we also commit to develop long-term national low-carbon strategies.” [page 17]
The G7 governments say they are acting under the impetus of last year’s Intergovernmental Panel on Climate Change report and in anticipation of next December’s Climate Change Conference in Paris. In the conception of the IPCC report, greenhouse-gas emissions should be 40 to 70 percent lower globally in 2050 than in 2010 and “near zero” in 2100 to achieve a goal of holding greenhouse-gas concentrations in the atmosphere to 450 parts per million in 2100. Even that level is a substantial increase above the current level of 404 parts per million, at which the Earth’s climate is already undergoing dramatic changes.
The IPCC report, prepared by scientists from around the world but apparently watered down by the world’s governments, promises that mitigating global warming will be virtually cost-free and require no fundamental change to the world’s economic structure. Alas, there are no free lunches — the IPCC report’s insistence that techno-fixes will magically take care of carbon buildup, allowing humanity to continue the path it has been on since the dawn of the Industrial Revolution, is dangerously unrealistic.