co2 is increasing rapidly, and is reaching levels not seen on the earth for millions of years.
co2 is increasing rapidly, and is reaching levels not seen on the earth for millions of years.
carbon dioxide:192
increases in atmospheric concentrations of co 2 and other long-lived greenhouse gases such as methane, nitrous oxide and ozone have correspondingly strengthened their absorption and emission of infrared radiation, causing the rise in average global temperature since the mid-20th century.