Did you read the link I gave? I really liked this bit.
"It is obviously true that past climate change was caused by natural forcings. However, to argue that this means we can’t cause climate change is like arguing that humans can’t start bushfires because in the past they’ve happened naturally. Greenhouse gas increases have caused climate change many times in Earth’s history, and we are now adding greenhouse gases to the atmosphere at a increasingly rapid rate."
The climate has changed many times n the past and now we are forcing another change by burning fossil fuels.
