Yet another inconvenient truth
https://en.wikipedia.org/wiki/Apocalypticism#/media/File:Durer_Revelation_Four_Riders.jpg So, it turns out that global warming started 100 years ago . This is really bad news if increased carbon dioxide levels are responsible for global warming. In 1900 it is estimated that the 296 ppm (parts per million) CO2 level was only 16 ppm higher than they were before the industrial revolution (estimated 280 ppm in 1800) started to impact CO2 levels . Let's review what that implies. In 1804 world human population was about 1 billion. World wide coal consumption could be measured in thousands of tons, mostly for heating homes in the few places where coal could be found or transported. There were no gas or oil wells except maybe a few in China. And other than a few steam engines in Western Europe and the USA there were no cars, trucks, trains, airplanes or stationary machinery running on fossil fuel. According to Our World in Data coal energy produced in 1800 was 128 Terra W