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A comment on Scientists warned about climate change in 1965. Nothing was done. Parent comment

Re:Scientists warned about climate change in 1965. Nothing w... by dheera on Tuesday May 30, 2023 @03:13PM (#36129200)
No, more CO2 in the air does not lead to increased flora. In fact, the higher temperatures will more likely destabilize ecosystems and result in more deserts and habitats unsuitable for flora.

We're also cutting down flora at an unprecedented rate for meat farming and other uses.

Flora also don't grow that rapidly. Fossil fuels are compacted, sequestered carbon from thousands of years.

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Re:Scientists warned about climate change in 1965. Nothing w... by dragonwriter on Tuesday May 30, 2023 @03:29PM (#36129412)
> No, more CO2 in the air does not lead to increased flora.

Are you sure?

“A quarter to half of Earth’s vegetated lands has shown significant greening over the last 35 years largely due to rising levels of atmospheric carbon dioxide, according to a new study published in the journal Nature Climate Change on April 25 [,2016].

[…]

The greening represents an increase in leaves on plants and trees equivalent in area to two times the continental United States.

[…]

Studies have shown that increased concentrations of carbon dioxide increase photosynthesis, spurring plant growth.

[…]

Results showed that carbon dioxide fertilization explains 70 percent of the greening effect, said co-author Ranga Myneni, a professor in the Department of Earth and Environment at Boston University.”

https://climate.nasa.gov/news/2436/co2-is-making-earth-green...

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Re:Scientists warned about climate change in 1965. Nothing w... by dheera on Tuesday May 30, 2023 @09:40PM (#36133527)
> A quarter to half of Earth’s vegetated lands

What about the other 50-75%?

I meant it in a lifecycle sense, not just an isolated increase in CO2 without considering other factors such as global average temperatures and natural water sources.

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Re:Scientists warned about climate change in 1965. Nothing w... by 2479411230 on Tuesday May 30, 2023 @03:47PM (#36129662)
I don't think this is accurate. Increased CO2 can lead to increased flora--though not enough to offset the negative effects of additional CO2 in the first place.
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Re:Scientists warned about climate change in 1965. Nothing w... by prometheus76 on Tuesday May 30, 2023 @03:56PM (#36129816)
Why do commercial greenhouses have CO2 generators? I am not following your argument at all. I haven't seen evidence for your first claim (and asked you a follow-up question related to that). We're not cutting down flora for meat farming. We are changing some environments over to farming, but that farm land is largely being used to raise...more plants. In addition, I remember seeing a study (I don't have time to try and find it) that showed that we have more trees now than anytime in the last 500 years.

Your third claim (flora also don't grow that rapidly) is just an assertion that doesn't really make sense to me. And the final statement about fossil fuels is a non sequitur.

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Re:Scientists warned about climate change in 1965. Nothing w... by reaperman on Tuesday May 30, 2023 @10:14PM (#36133715)
> In addition, I remember seeing a study (I don't have time to try and find it) that showed that we have more trees now than anytime in the last 500 years.

Maybe in Europe, only. But absolutely not globally. The amazon deforestation alone...

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