How does the whole climate scene, earth's temperature changes, the Sun's radiant heat, the green house gas effect and more work anyway? Why should we care to know?
For one thing, the physics of how and why our Earth has the temperature patterns that it has are not secret. They are actually not very complicated and they are not questionable. The physics is as well understood as the force of gravity. We understand, at our space agencies, gravity well enough that a small space craft could be launched ten years ago to meet up with a comet and go into orbit around it and even get a small lander onto that comet. The physics of our planet's temperature and the way our oceans and lands and atmosphere interact with the Sun's irradiant light are well understood from theoretical models as well as real observations to confirm that theory using satellite data.
One of the best and complete explanations of how this works is found in the link below at NASA's Earth Observatory website. The illustrations are excellent, and anyone can feel the logic, the reality and the science reading all about it. Basically, it works likes like this: