It's undeniable that we're the cause of the climate change. Millions of tons of CO2 sadly aren't nonsense, and in the last few years there has been a lot of scientific evidence that the CO2 is the main cause of the climate change. The climate has always been changing, but has never changed that drastically as it does now. People who absolutely deny these scienific _facts_ just don't want to realise that they should change their way of life in favor of our planet, imo.