I watched the PBS Frontline report Heat online. It’s 2 hours long, and explores the magnitude and difficulty of scaling back global carbon dioxide emissions by 80% by 2050 (which is what the IPCC says is required). To be a success in my mind, I think it had to do four things:
- Convey the colossal magnitude of the problem, essentially requiring a complete re-imagination of the engines literally driving the global economy: fossil fuels and ever expanding resource consumption, and cooperation between nations and corporations on a scale we’ve never seen.
- Describe the potential costs of inaction, including sea level rise, possibly rapid decreases in agricultural productivity in some areas, water shortages in the world’s most populous regions due to melting glaciers, and ultimately, the irreversibility of the changes, due to positive feedbacks.
- Explain how solving the problem is difficult, politically: due to effective lobbying from old and currently profitable industries, and the inability of tomorrow’s potentially profitable “green” industries to effectively lobby, because they don’t currently have either the billions in profits to “invest” in DC, or a large base of employees represented as constituents. Economically: because there is no cost borne by GHG emitters, making the atmosphere a tragic economic commons.
- Provide at least an outline of what any potential solution will look like: It will have to be measured in terawatts, meaning the only two sources of power that are up to the task in the long run are solar and nuclear (with reprocessing and breeder reactors eventually). It will also require a method of turning electricity into some transportable high energy density form, like liquid fuels, or much much better batteries.