Here's another experiment to consider. I call this the "Bill Nye - Science Guy" at home kitchen test of ACC/AGW.
We'll use basic arithmetic here, Grades K-12; no need for 'Math'. We'll also round off the numbers for simplicity sake.
Start with expressing 400ppm of CO2 to the full atmosphere as a fraction;
400/1,000,000
Reduces to 1/2,500*
Take an empty two liter plastic soda bottle and fill it with two liters of distilled water (H2O) which is at 70 degrees F.
Since 2 liters = 2,000 milliliters (ml) and that is 80% of 2,500, we will add only 80% of one milliliter to this to represent our carbon dioxide/CO2. That is 0.8 ml which if one doesn't have an eyedropper or pipette scaled in milliliters is about one quarter a teaspoon (tsp) which you hopefully have as measuring tool in your kitchen drawer.
The two liters (2,000 ml) of water we fill the bottle with will be at 70 degrees F.
The 0.8ml of warmer water - represents the 400ppm of CO2 - will be at 80 degrees F.
Using one of those infra-red thermometers that one points at their forehead to get body temp. use such to see and record any increase in the temperature of the 2 liters of water that was in the bottle at 70 degrees F.
Get back to us with documented proof that there was a temperature increase of the 2 liters inside the bottle.
What The ACC/AGW hucksters, flim-flam phony's, scammers like
Anomalism are trying to pull here is that there would be a noticeable change of increased temperature through out the whole bottle of the cooler water once that warmer(hotter) drop of water is introduced.
This should rest the case that certain "interests" are peddling a pile of snake oil(BS) with their scenario of CO2 causing ACC/AGW.