Precession of Earth’s rotational axis takes approximately 26,000 years to make one complete revolution. Through each 26,000-year cycle, the direction in the sky to which the Earth’s axis points goes around a big circle. In other words, precession changes the “North Star” as seen from Earth.
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Evidence for this can be seen in the type of remains found in the deserts of Northern Africa

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I don't think that it is that people don't want to take responsibility but that it is a multivariate problem not just something that is one source. By focussing on one aspect (man made CO2) which should lead to global warming, it neglects that a number of events are happening at the same time. For instance in this video

you can see the expansion of rifts in Africa. In no way can CO2 be held responsible for this type of event. I think we have a situation of a sinking ship that catches fire. Focussing on one crisis while denying the other exists might lead to unfortunate consequences.