Homo Sap has been around for about 300,000 years. For only about 15,000 years of that have we done any real technological things. And only for about the last 200 years have we been burning huge amounts of fossil fuels. Yet in those two small centuries we have managed to warm the surface of the Earth about 1.5 degrees C. Now I realize that graphs are well beyond your comprehension level, as is basic science. Just because you are incapable of understanding something does not mean that the rest of humanity is also incapable of that understanding.