I'm no expert on this but didn't we hear recently that other planets in our solar system are also suffering from climate change? If this is true then ???
So we may have increased CO2 by 30% in 150yrs. This depends on the concentration level before we started. Let's suppose it was 3parts per million, now it is 4parts per million, is that a big deal?
What I am saying here is, 30% of what? Let us not have people believe that CO2 amounts to 30% of the total atmosphere!!
Figures , statistics, surveys etc can be made to look anything you like.
Call me a sceptic / unbeliever, what you will.
I seem to remember circa 1963? the sea froze in Devonport harbour. Was that a mini ice age?