Understanding Carbon Dioxide

Carbon dioxide is a pollutant so significant to human civilization that Professor Wysession devotes an entire lecture to... (more)

Carbon dioxide is a pollutant so significant to human civilization that Professor Wysession devotes an entire lecture to it. If CO2 is only 0.04% of the atmosphere, how can it be so harmful? Is global warming a natural process? What actions can we take to reduce the dangers of CO2? (less)