> But I disagree on some core orthodoxies. I think the root cause is deforestation / removal of carbon sinks, and a even lower-level root cause is simple human overpopulation. The amount of missing biomass from trees over the last few hundred years tracks very neatly with CO2 levels, as does of course human population levels.
Burned fossil fuels has well understood isotope signatures and can also be measured via satellite. We've got a LOT of data that human emissions of CO2 via burning fossil fuels accounts for the bulk of CO2 increase we measure in the atmosphere.
Burned fossil fuels has well understood isotope signatures and can also be measured via satellite. We've got a LOT of data that human emissions of CO2 via burning fossil fuels accounts for the bulk of CO2 increase we measure in the atmosphere.