to this post...man-made CO2 from the burning of fossil fuels takes awhile to be removed from the atmosphere...some can be 'scrubbed' in as little as 20 years, but the majority takes hundreds of years...again, reflect on the 'passport clearing' example...excess CO2 is continuously building up...daily...and it is an undeniable "greenhouse" gas...there's no debate here. You can also Google the data logs of CO2 taken at Mauna Loa volcano...steady, monotonic increase in the concentration...much beyond what has been found from climate cycles of long ago.
I've also looked at "Milankovich Cycles" and for the latest one, we are very near what should be the peak for temps and CO2...but, alas, both are still rising...these are facts. The data sources have nothing at all to do with political agencies...Roy Spencer (Univ. of Alabama at Huntsville) would actually be considered by many to be a global warming denier, but in fact he's just a pure scientist reporting the numbers he sees.
For me, there are now two reasons to get off fossil fuels...the first came after the OPEC Oil Embargo in '73, which caused me to join the nuclear power industry working on Fast Reactors...i.e. stop burning valuable resources like oil & gas and use better sources for electricity (Nuclear)....since then, the case for global warming has gotten stronger, and now is at our doorstep.
Do more objective research on this...it takes some time to "get it"...by no means would I expect you or many others to suddenly say "You've convinced me!"...start with David MacKay's book.
Link: https://www.theguardian.com/environment/2012/jan/16/greenhouse-gases-remain-air