The fossil record shows that climate has constantly changed. That is fact. Mankind since the Industrial revolution has burnt fossil fuels, producing copious amounts of CO2. That also is a fact. The extent to which the present climate change is due to anthrapogenic causes is unclear.
All research is funded and those funding it set the agenda. Turkeys do not vote for Christmas. Also climate change is a perfect cover for the introduction of carbon taxes. Perhaps as a geologist I am just too cynical.