[Sherman Logan]

Industrial Revolution factories and growing human populations burned more wood and fossil fuels, baked more bread, and brewed more beer, adding still more CO2 to the atmosphere. Much more of the miracle molecule came from volcanoes and subsea vents, forest fires, biofuel use, decaying plants and animals, and “exhaust” from living, breathing animals and humans.

Malarkey. With the exception of burning fossil fuels, none of these add to the amount of CO2 in the biosphere in a significant way. They just move it around within the biosphere.

[FatherofFive]

They just move it around within the biosphere.

Exactly. But without CO2, we would not exist. More CO2, more plants. More plants, more oxygen. Oxygen is what allows humans and pretty little kittens to live.

[D Rider]

Malarkey. With the exception of burning fossil fuels, none of these add to the amount of CO2 in the biosphere in a significant way. They just move it around within the biosphere.

Of course that excepts "fossil fuels," which are nothing more than solar energy that has been stored in lifes battery, the hydrocarbon. Returning the carbon to the atmosphere as CO2 should not be considered a bad thing.