@LisaPBessant@archeohistories Today, with the usage of fossil fuels and other CFC gasses we are seeing very rapid rise of greenhouse gasses leading to global warming. That's why scientists are saying it's man made
@LisaPBessant@archeohistories Yes. Global warming and cooling has gone on for millions of years. Some rapid and some not. In the past, green house gasses were released by volcanic and tectonic activities over long periods of time (thousands of years).