First of all the manipulation of the graph to make it look like there is massive changes going on in the atmosphere.
You have to see it in true perspective.
For instance represent all the components 100 % on a wall as 100 inches ( A little over 8 feet high)
21 percent of oxygen in our atmosphere would take up 21 inches
Carbon Dioxide at 421 PARTS PER MILLION is actually 0.04 percent To represent this we need a little less than one millimeter (about 1/25) of an inch
That 280 ppm to 421 ppm jump that looks so frightening on their graphs is actually about 1/7 of a millimeter of a scale of the atmosphere over 8 feet tall
water vapor in the atmosphere has a much greater heating and cooling effect.
They have convinced millions of people that carbon dioxide is some kind of dangerous pollutant that we must control by giving them control over our activities and travel.
In fact carbon dioxide is an essential component for plants (a plant food) In fact many green houses go to a lot of trouble to keep pumping up carbon dioxide levels up to 1500 ppm because it results in lush growth and is absorbed by the plants resulting in higher yields.