The Earth and it's geology and atmospheric history.

CO2 carbon dioxide makes plants grow.

Coal is formed from rapid and intense plant growth.

Ice Ages come and go with tilt of the Earth's axis

Large amounts of CO2 carbon dioxide dissolved in oceans

Wooly Mammoth, saber-toothed cat, Giant Ground Sloth, all disappeared from North America during last glacier or ice age, now we are warming up.

Humans impact on the Earth and its atmosphere.

Low cost electricity helps people.