Prove the earth is warming and CO2 is the cause.
Your appropriate question brings to mind why methane and CO2 gases, demonized by politically correct global warming alarmists imo, fail to hold the heat down during a midday solar eclipse on an otherwise sunny day, eclipses known to quickly and temporarily drop temperature by double-digits in some places.
Solar eclipse 2017: How much did the temperature change during the eclipse? (non-FR; 8.22.17)
Also, unsurprisingly, the nightime temperature in otherwise seasonally warm places typically keeps dropping until a little after sunrise, correction welcome.