There is no problem. CO2 makes up only .04% of the atmosphere; human contribution to that is 3-4%. Human contribution of CO2 to the atmosphere is .000012-.000016 of the atmosphere. Plants need CO2- we need plants- we need to be sure the plants get enough CO2. Carbon is not bad, it’s a major part of what we’re made of. It’s all a hoax born of the deindustrialization movement, and promoted by opportunists, profiteers, and gullible sheep.