What are the causes of global warming?
- Climate change
It is not clear. But the idea that "97% of climate scientists agree" on anything is fiction.
Increase in atmospheric CO2.
Humans are responsible for all of global warming. Without our influence, the Earth would be cooling a tiny bit due to natural factors.
Global warming appears to have stalled since the early 2000s, so whatever effect comes from humans, it can't be that huge.
Milankovitch cycles: the variations in Earth's orbital eccentricity, axial obliquity, and precession (the direction of the Earth's axis of rotation)