Ferren MacIntyre

Some underappreciated aspects of the climate. [Idealization]: Earth has a partially IR-opaque 5-km-deep tropospheric layer whose (slowly rising) top radiates waste heat to space at the -18°C Stefan-Boltzmann temperature and below which the temperature increases 33°C by adiabatic compression. Fossil-fuel CO2 has deepened this layer by 308 m and added 2°C of Anthropogenic Global Warming. [Hypothesis]: The final Vostok glaciation was aborted anthropogenically (it was the “Little Ice Age”): we are in terra incognita because [Fact] the 800,000 years of ice-core and sea-floor climate-proxy data describe a world whose mobile CO2 inventory was 300 ppm, largely irrelevant to a world with >424 ppm. [Fact]: The climate-disinformation policy of the U.S. far right promotes "quantum saturation" to claim that global warming is ignorable. Such saturation of CO2 may occur in spectrophotometer tubes, but not in the free atmosphere. Warming will increase as long as we emit CO2. [Fact]: The threat is existential, the necessary fix is to return the atmospheric burden of CO2 to 300±20 ppm, and there are helpful things we should have been doing for 50 years.