Only the sun and the earth's infrared heat are the things that heat up the earth. If there was too much C02, there would be a cooling effect because the sun would be blocked and dispursed by the compounds in the air. That is why a desert climate is much hotter, there are no compounds. At night it gets very cold due to no cloud cover and precipitation in the air. It's why tropical climates are cooler than deserts. There is more water and C02 in the air. Smog creates a cooling effect in the local region. Simple compounds break down over a distance with alt. It's why you don't feel the effects of a volcano from 1000 miles away. There is no way that an abundance of C02 in some local regions like cities in China or India are "increasing the earths temperature". The water vapor in the atmosphere is actually cooling it. Only the sun could cause a rapid global heating phenomenon because of the grand solar minimum cycle. That's just the truth.
All they care about is you living in fear and profiting and staying in power from that fear.