It would depend on the kind of plant you're taking about. Furthermore, what plants can survive and what humans can survive are very different things.
What level of CO2 destroys plant life? CO2 was many, many times higher in the past, and I’m pretty sure the plant life survived, because if it didn’t, we wouldn’t be here.https://twitter.com/thor_benson/status/1082095211742806016 …
-
-
-
Someone’s goalpost is on wheels.
End of conversation
New conversation -
-
-
Always one good super volcano away from not-gonna-matter.
- 1 more reply
New conversation -
-
-
Plants get more productive with more CO2. The limiting factor is animal tolerance. Negative effects begin to be felt at several thousand ppm. We're at like 400 ppm.
-
BUT ... BUT ... We could get there in a few centuries, assuming we don't create any new technology ever again! A century from now, we'll probably be using space solar power and intentionally manufacturing CO2 to keep the air at healthy levels for life, probably 500-1000 ppm.
End of conversation
New conversation -
-
-
The last time atmospheric CO2 increased anywhere near the rate we see, or was ever as high as it is now, was 252-248 million years ago. During the Permian-Triassic extinction. The Great Dying.
-
Any age called “The Great Dying” you should probably avoid repeating....
End of conversation
New conversation -
-
-
It’s ok because when you put everyone’s taxes up the plants all miraculously recover. Sunflowers spring up everywhere with big smiley faces on. Just from tax - nothing else.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
We are actually at a level of CO2 that, if materially reduced, will imperil allplant life on earth. We need more, not less, and the increase will be fertilizer for plants.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
But they are different plants compared to what they were serval million years ago. Also if that’s your argument you could say why do we need oxygen it wasn’t prevelent in the air in the past
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
CO2 at 500 times the current level would be heaven for plants.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
This Tweet is unavailable
-
-
CO2 does encourage plant growth. Problem is growth occurs in leaves and stems while nutritional value stored in the seeds is reduced as CO2 levels increase. As over half the world’s population is dependent on the nutrition from grains like wheat and rice headed for starvation.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
Seems like the problem is how the current levels of CO2 are concentrating at a higher rate and the fact that plants have different ways to process CO2, they don't depend on CO2 alone. https://www.nature.com/scitable/knowledge/library/effects-of-rising-atmospheric-concentrations-of-carbon-13254108 …https://www.quora.com/Why-dont-plants-take-advantage-of-the-excess-CO2-were-emitting-by-increasing-their-range-growth-numbers-etc-to-absorb-it …
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
lower than 180 ppm will destroy most plant life.
-
It's hard to imagine calling something a "pollutant" that, were it to be reduced by two-thirds, would result in the extinction of most life on the planet. The typical life cutoff is 150-160 ppm, but we get down below 200 ppm during glaciations. A near-death experience.
-
there some variations in that number 180 is for c3 plants which are 95% or the planet plant based biomass. you grasses, trees, wheat, rice.
-
Agreed, though we are talking about "failure to live" versus "failure to grow." And we've hit 180 during recent glaciations. A lot of food crops, though, are C4, which matter a lot to people. We agree on the concepts, certainly.
-
c4 consists of corn and cam is pineapple. the rest of the food grown are c3. so I would have to disagree with your statement about c4 crops being alot of food. from the information I'm looking at c3 plants are the majority of food crops. but yes we do agree on concepts.
-
wheat and durm will also need to be done.
-
No doubt, but that work lags far behind the rice genome tinkering I think.
End of conversation
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.