The climate change movement: July 28, 1995 to August 14, 2020 RIP

[redpoint5]

Originally Posted by Isaac Zachary

Are we talking about in the past 50 years, or the time within mankind's existence, or since Earth was formed? Are we talking about mostly algae which in some areas ends up causing algae explosions which poison the waters they inhabit killing off other species like fish?

I addressed these questions a few posts back in this very thread.

https://ecomodder.com/forum/697899-post1719.html

AI just gave the following answer-

Studies indicate that rising CO2 concentrations have significantly boosted plant growth. According to a study published in Nature, plants have utilized 30 percent more CO2 since the start of the 20th century, leading to increased plant growth. Another study suggests that global photosynthesis likely increased by 13.5% between 1981 and 2020 due to CO2 fertilization.

When earth was at the lowest CO2 concentration level (180ppm), it was dangerously close to the threshold where plants cannot survive (about 150ppm). We were this close ][ to not existing due to the loss of all plant life.

We're at 400ppm now, which is still extremely low in historic terms. Back when dinosaurs had the planet, CO2 concentration was 1,000-2,000ppm, and they managed to survive despite being the dumb ancestors to birds.

It's preposterous to think dumb dinosaurs could thrive at temperatures and CO2 concentrations way higher, but our species who have figured out how to live in any environment, will fail.

Not a single person will be on their death bed recalling how awful losing a child in a car accident, a brother to diabetes, and now succumbing to cancer was bad, but not nearly the horror of global warming. Not one, ever.

[freebeard]

We were this close ][ to not existing due to the loss of all plant life.

__

[Isaac Zachary]

Originally Posted by redpoint5

I addressed these questions a few posts back in this very thread.

https://ecomodder.com/forum/697899-post1719.html

That article in that post is about the ill effects of rising CO2 levels. It says plants will, overall, have more photosynthesis and use less water, but that there were many other worse consequences that counteract those benefits.

Originally Posted by redpoint5

We're at 400ppm now, which is still extremely low in historic terms. Back when dinosaurs had the planet, CO2 concentration was 1,000-2,000ppm, and they managed to survive despite being the dumb ancestors to birds.

It's preposterous to think dumb dinosaurs could thrive at temperatures and CO2 concentrations way higher, but our species who have figured out how to live in any environment, will fail.

Ironically dinosaurs died from climate change, which is what's happening. It's not that the plants and animals on the Earth can't survive if it's a bit different than now, as long as things are relatively constant so life can adapt. It's the abrupt change from one to the other that can pose a threat to certain species and cause weather disruptions that we, and plant and animal life, were not prepared for.

Originally Posted by redpoint5

Not a single person will be on their death bed recalling how awful losing a child in a car accident, a brother to diabetes, and now succumbing to cancer was bad, but not nearly the horror of global warming. Not one, ever.

What? Just because you don't care doesn't mean I don't, and/or vice versa.

[freebeard]

Ironically dinosaurs died from climate change, which is what's happening.

That's a bit of a stretch.

Dinosaurs didn't (insofar as we know ) monitor near-Earth orbiting objects. We might see one Tunguska-sized object in the near future.

OTOH the three-foot dragonflys succumbed to low oxygen levels.

[redpoint5]

Originally Posted by Isaac Zachary

That article in that post is about the ill effects of rising CO2 levels. It says plants will, overall, have more photosynthesis and use less water, but that there were many other worse consequences that counteract those benefits.

It's a Columbia University article, so of course they are going to explain why us dumb folk don't understand why good news is really bad news.

Ironically dinosaurs died from climate change, which is what's happening.

If you call a blast furnace from an asteroid climate change, then sure. They didn't die because it got 2 degrees warmer, they died because it got hundreds of degrees warmer, then froze due to sunlight being blocked out.

It's not that the plants and animals on the Earth can't survive if it's a bit different than now, as long as things are relatively constant so life can adapt.

That's what I've been saying, that the rate of change determines the rate of stress on species to adapt.

What? Just because you don't care doesn't mean I don't, and/or vice versa.

I didn't say I don't care, only that my belief in any particular direction is worthless because the experiment will be played through.

You missed my point though, that global warming will never be high on the list of calamities that befall people.

[Isaac Zachary]

Originally Posted by redpoint5

You missed my point though, that global warming will never be high on the list of calamities that befall people.

And my point was it isn't going to be all that low either.

[freebeard]

Suppose AI were to conclude the humane thing to do would be to encourage us to entertain ourselves to un-alive-ment.

[aerohead]

Originally Posted by Piotrsko

So in dummy speak, we're going to freeze to death because it is getting warmer?

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Remember, we're talking about statistical global mean averages. Regional / local distributions of all components at play cannot be sorted out with the general circulation models.
It would take 20-weeks just to skim over the impacts.
The changes will be 'faster' than humans and wildlife can possibly adapt.
Costs will exceed the entire global GDP.
Presently, for some, merely going outside constitutes a death sentence.

[oil pan 4]

And conveniently forget that all the models show every part of the planet getting warmer. Nowhere is supposed to stay the same or get cooler...

[aerohead]

Originally Posted by oil pan 4

And conveniently forget that all the models show every part of the planet getting warmer. Nowhere is supposed to stay the same or get cooler...

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The general circulation models do not get into regional specifics that I know of.
On any given day, a specific location might experience a temperature excursion which meets, or exceeds a 'weather' record.
Globally, Earth is warming, we know what Earth was like the last time greenhouse gas concentrations were what they are today. Average sea level will be 80-feet higher. Stuff like that.
The Polar Vortex is affected by the warming Arctic. This affects the Jet Stream, which distributes heat, water vapor, storms, drought, etc. in our hemisphere.
Record lake-effect snow, early thaw flooding, river ice-damming, stationary fronts, Derechos, .................. all kinds of 'local' phenomena.