Climate changes are simply natural, planetary processes occurring over recent and geological time. Simple as that.
1. Various times in Earth's history it nearly went into a full on, run away greenhouse effect. Look it up so you can understand what a runaway greenhouse effect is.
2. The LGM, Last Glacial Maximum, ice age, occured 20,000 years ago. New York was covered in a neary 2 mile high ice sheet. The northern latitudes of USA are covered in glacial scouring and moraine. The next ice age is expected within 50,000 years. Could be a little less or it could be a little more. Guess what will happen to the global ocean levels? They'll decrease in volume and when the glaciers and ice sheets melt, the water level will rise.
3. We also had a snowball Earth; completely covered in ice.
4. We had a complete waterworld Earth.
5. All over Earth, including miles off the coast of Florida, are ancient human habitations covered in water. There are ancient cities now under oceans.
6. Dinosaur fossils are found where ocean water has receded. Fossilzed sharks are found in the Central Valley, Eastman Lake, California, which was once under ocean water over a mile deep.
7. All the carbon produced during our entire human history, if analogized to all the sand on Earth, would amount to one grain of sand for humans and the rest by natural processes.
No joke, look up the starling bird, it perfectly mimics human speech, including tone of anything it hears. There's a YT video of a starling, in which the owners while at work, leaves the tv on CNN and MSNBC. They spend the entire evening, after a long day, having to listen to the starling repeat everything its heard.
