The largest influence on climate is the sun's solar radiation output. But try and get a climate scientist to concede this point is virtually impossible. Climate does change and can change rapidly. Europe has spent $200 Billion to mitigate global warming and has achieved nothing in terms of climate change. Many people have profited handsomely on something that cannot be proved selling a conjecture to people who do not know or could even explain why summers are warmer and winters are colder in the Northern Hemisphere. Global dimming and Global Atmospheric Geo engineering doesn't even get a mention in the media.

Bad Science

https://www.youtube.com/watch?v=NALpRMaSAQE