
Earth, The Sun and CO2: What really determines our climate?
There is a myth that ‘there is always climate change’, with the implication that humans could live through such changes despite past mass extinctions, and the fact the planet is dying. You would think the Earth always supported complex life, humans have always existed, and no species had ever become extinct.
Even that Earth supports human life for even a very short window of time is remarkable. While Mars and Venus have changed by hundreds of degrees, as the heat from our Sun risen 45% since the planets were born, temperatures on Earth have changed very little, due to heat regulation by CO2 levels.
Understanding the interaction of plants, the Sun and CO2, is key to understanding both natural and anthropogenic climate change.








































