3 ms·

The earth has both warmed and cooled since the end of the ice age 10,000 years. You don't give a mechanism for this warming you seem to just chalk it up to the

The earth has both warmed and cooled since the end of the ice age 10,000 years. You don't give a mechanism for this warming you seem to just chalk it up to the natural cycles that drive ice age related warming and cooling. It's just we know what causes those and we've ruled it out. Milankovitch cycles. The periodic variability in earth's orbit should have us cooling ever so slightly. Instead we are warming rapidly. Your claim that this is the same warming as what brought us out of the ice age is false and has been known to be false for a long time

linuxftw 7y ago
> The earth has both warmed and cooled since the end of the ice age 10,000 years. No, it has only warmed, otherwise we'd be in another ice age. > The periodic variability in earth's orbit should have us cooling ever so slightly That is only a single input. The other input is solar activity, which has increased. Also, if there is indeed a positive feedback loop, after the earth reaches X degrees, then water vapor will continue to increase the earth's temperature absent a reduction in solar input large enough to stop the loop. > same warming as what brought us out of the ice age is false and has been known to be false for a long time It's not known to be false, that's just nonsense. Look how hot it used to be: (from [1]) > Geologists and paleontologists think that during much of the Paleocene and early Eocene, the poles were free of ice caps, and palm trees and crocodiles lived above the Arctic Circle. The transition between the two epochs around 56 million years ago was marked by a rapid spike in global temperature. Crocodiles above the Arctic Circle! But keep telling me how CO2 is going to cause the planet to combust. 1: https://www.climate.gov/news-features/climate-qa/whats-hottest-earths-ever-been https://www.climate.gov/news-features/climate-qa/whats-hotte...
- breakyerself 7y ago
  >No, it has only warmed, otherwise we'd be in another ice age. Theres no sources that support that, but ok. > The periodic variability in earth's orbit should have us cooling ever so slightly >That is only a single input. The other input is solar activity, which has increased. Solar activity has been declining for 40 years exactly at the same time as the planet has been warming to record high temps. Solar has been ruled out not only through direct observation, but also through the nature of the warming. The lower levels of the atmosphere are warming fast while the upper reaches like the stratosphere are cooling. This is because the heat is being trapped at lower levels by the increasing greenhouse effect. Also night time temps are increasing faster than day time temps. Both of these are fingerprints of greenhouse warming and not solar.
- breakyerself 7y ago
  Also, if there is indeed a positive feedback loop, after the earth reaches X degrees, then water vapor will continue to increase the earth's temperature absent a reduction in solar input large enough to stop the loop. > same warming as >It's not known to be false, that's just nonsense. Yes it is. Milankovitch cycles are in cooling mode and they don't work at these speeds. Nobody besides internet crackpots are blaming milankovitch cycles. > Geologists and paleontologists think that during much of the Paleocene and early Eocene, the poles were free of ice caps, and palm trees and crocodiles lived above the Arctic Circle. The transition between the two epochs around 56 million years ago was marked by a rapid spike in global temperature. Crocodiles above the Arctic Circle! What was the co2 concentrations back then? >But keep telling me how CO2 is going to cause the planet to combust. Nobodys saying the planet is going to combust, but thTs a nice strawman.

linuxftw 7y ago

> The earth has both warmed and cooled since the end of the ice age 10,000 years. No, it has only warmed, otherwise we'd be in another ice age. > The periodic variability in earth's orbit should have us cooling ever so slightly That is only a single input. The other input is solar activity, which has increased. Also, if there is indeed a positive feedback loop, after the earth reaches X degrees, then water vapor will continue to increase the earth's temperature absent a reduction in solar input large enough to stop the loop. > same warming as what brought us out of the ice age is false and has been known to be false for a long time It's not known to be false, that's just nonsense. Look how hot it used to be: (from [1]) > Geologists and paleontologists think that during much of the Paleocene and early Eocene, the poles were free of ice caps, and palm trees and crocodiles lived above the Arctic Circle. The transition between the two epochs around 56 million years ago was marked by a rapid spike in global temperature. Crocodiles above the Arctic Circle! But keep telling me how CO2 is going to cause the planet to combust. 1: https://www.climate.gov/news-features/climate-qa/whats-hottest-earths-ever-been https://www.climate.gov/news-features/climate-qa/whats-hotte...

breakyerself 7y ago
>No, it has only warmed, otherwise we'd be in another ice age. Theres no sources that support that, but ok. > The periodic variability in earth's orbit should have us cooling ever so slightly >That is only a single input. The other input is solar activity, which has increased. Solar activity has been declining for 40 years exactly at the same time as the planet has been warming to record high temps. Solar has been ruled out not only through direct observation, but also through the nature of the warming. The lower levels of the atmosphere are warming fast while the upper reaches like the stratosphere are cooling. This is because the heat is being trapped at lower levels by the increasing greenhouse effect. Also night time temps are increasing faster than day time temps. Both of these are fingerprints of greenhouse warming and not solar.
breakyerself 7y ago
Also, if there is indeed a positive feedback loop, after the earth reaches X degrees, then water vapor will continue to increase the earth's temperature absent a reduction in solar input large enough to stop the loop. > same warming as >It's not known to be false, that's just nonsense. Yes it is. Milankovitch cycles are in cooling mode and they don't work at these speeds. Nobody besides internet crackpots are blaming milankovitch cycles. > Geologists and paleontologists think that during much of the Paleocene and early Eocene, the poles were free of ice caps, and palm trees and crocodiles lived above the Arctic Circle. The transition between the two epochs around 56 million years ago was marked by a rapid spike in global temperature. Crocodiles above the Arctic Circle! What was the co2 concentrations back then? >But keep telling me how CO2 is going to cause the planet to combust. Nobodys saying the planet is going to combust, but thTs a nice strawman.