>>10267615>humans have had a negligible affect on the climate
The amount of heat being radiated towards the Earth from CO2 has been directly measured via radiative spectroscopy. The change in CO2 caused by humans has been directly measured via isotope analysis. The change in climate forcing since the industrial revolution is equal to the change in forcing from man's CO2 emissions. The whole effect can hardly be considered "negligible.">volcanoes have been heating up the earth for hundred of thousands of years
The climate has cycled consistently between glacial and interglacial periods according to the Milankovich cycle for hundreds of thousands of years. It hasn't warmed throughout, just cycled between these two climates, until now when we are rapidly warming out of an interglacial. So if volcanoes were warming the Earth for hundreds of thousands of years, why are we only warming now? Also, volcanoes cause warming by releasing CO2, but humans are rleasing more CO2 in a day than all the volcanoes on Earth do in a year. So this is just nonsense.