[briandon]

CO2, whether from fossil fuel combustion or respiration (e.g. part of your and my exhaled breath, day and night) becomes plant tissue. Land plants, algae in the oceans, the herbivorous content of your salad, the flowers in your garden, etc.

"Carbon Dioxide Fertilization Greening Earth, Study Finds" https://www.nasa.gov/feature/goddard/2016/carbon-dioxide-fer...

[flakeoil]

Yeah, well, I expressed myself clumsy. CO2 in itself is not bad, but the global warming effect caused by too much and unnatural CO2 in the atmosphere is bad. And that global warming effect slowly wreaks havoc with natures balance and long-term kills life on earth as we know it.