The more “reasonable” right wing pro fossil fuel narrative is the idea that earth goes through “cycles” and that we’ve been hotter before in the past, we’re coming out of an ice age, and this might be the result of solar activity and earth’s adjusting orbit and blablabla.

This theory of course ignores the historical climate record showing that this warming is happening at a faster rate than the usual cycles, as well as the fact that the kind of co2 that is released from burning fossil fuels is traceable and unique compared to the isotope that is released from like respiration decomposition, and etc. So we also do have a general idea that a large chunk of green house gas in the atompshere is all us.

It also denies just the simple logic of how burning fossil fuels works. It was a lot hotter and there were more greenhouse gases at one point the atmosphere was unbreathable. Over time that carbon was sequestered and buried deep under ground and kept that way. For millions of years that carbon was removed from the natural hot and cold cycle our planet goes through. Unrelated to carbonate erosion and deposition, and unrelated to volcanic activity, or continents closing up major oceanic currents, or shifts in salinity altering ocean conveyance, or solar activity, or axis tilts, or orbit shifts, and etc. These cycles happened while greenhouse gases were safely underground.