Earth’s climate has remained within the limits tolerated by life for several billion years. Unimaginable volcanic events liberated huge amounts of Carbon Dioxide, and our planet collided with extraterrestrial objects which triggered either increases or decreases in temperature, with the energy flow from the sun altering over time. The global temperature is well within life’s limits – the present-day is cooler than much of previous geological time. So, what’s to worry about?
Filmed at The Alternative View 4 Event in London – March 2010