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If it was just CO2 levels going up then maybe. The problem is that temperatures are going up too, so gas solubility is going down. This means that C4 or CAM pho
by c2h5oh 3y ago
If it was just CO2 levels going up then maybe. The problem is that temperatures are going up too, so gas solubility is going down. This means that C4 or CAM photosynthesis plants might get an edge over C3 on a larger area.
- ChatGTP 3y agoWe’d have to assume that due to the greenhouse effect , the earth was also hotter then ?
- Tade0 3y ago20mln years ago the sun was around 0,2% colder, which isn't a lot, but still more than variability from solar cycles.
- chrisco255 3y agoDo you have a source on that? We have been in an ice age for roughly the past million years. Pretty sure it was warmer in almost every other era prior.
- mlyle 3y ago> > 20mln years ago the sun was around 0,2% colder > Do you have a source on that? It's not solar radiation forcing that has made things relatively cooler, but it is cooler than 20M years ago. Of course, we could actually reach those temperatures again soon. https://environmental-geology-dev.pressbooks.tru.ca/chapter/changes-in-solar-output-and-in-the-earths-atmosphere/ https://environmental-geology-dev.pressbooks.tru.ca/chapter/... See fig 3.1.2. "The present rate of solar warming is about 8% every billion years. That’s 0.008% every million years or 0.0000008% every century."