Yes, it absolutely does cause warming at times. In fact, prior to human effects, it was the driving cause of climate variation. These periodic variations driven

Yes, it absolutely does cause warming at times. In fact, prior to human effects, it was the driving cause of climate variation. These periodic variations driven by orbital changes are called Milankovitch cycles[1]. Unfortunately for your theory, Earth's axial tilt is decreasing at the moment, and therefore we should be in the 'cooling' phase of the cycle. [1]: https://en.wikipedia.org/wiki/Milankovitch_cycles https://en.wikipedia.org/wiki/Milankovitch_cycles