zlacker

>>onnnon+(OP)
I no longer worry. I'm extremely pessimistic about the impending climate change. I believe Sabine isn't pessimistic enough about what to anticipate. Consider the tundra methane emissions and the explosive release of methane-hydrates from the oceans, along with water vapor, a potent greenhouse gas. The disaster looming over all ecosystems (a mass extinction event) that will happen in decades and the doom-phase could last for 200,000 years. The chances of humanity surviving are incredibly slim, IMO. We can't colonize Greenland or Antarctica due to the lack of fertile soil, and it would take thousands of years to develop it. Without saying so, we don't have this amount of time.

>>pk-pro+0K1
The IPCC 6 says "It is very unlikely that gas clathrates (mostly methane) in deeper terrestrial permafrost and subsea clathrates will lead to a detectable departure from the emissions trajectory during this century".

Your pessimism may be trendy but it isn't supported by the bear available evidence.

>>slibhb+Z32
Don't misunderstand me here. I'd rather be wrong regarding my "doomism," and I no longer worry about climate change; it doesn't make sense to worry about something that can't be changed. However, I observe that people aren't scared enough to take action. They continue to dance around the issue in political euphoria. The changes to our lifestyle are happening too slowly to be effective. The gas and oil industry is doing a lot of carbon emission washing, like CSS. Many optimists argue, "We can't predict it, therefore we shouldn't be worried."

>>pk-pro+W62
> I observe that people aren't scared enough to take action. They continue to dance around the issue in political euphoria. The changes to our lifestyle are happening too slowly to be effective.

These are all reasonable observations, but they don't remotely substantiate "The chances of humanity surviving are incredibly slim, IMO."

Just tone down the hyperbole. No serious informed science exists to predict human extinction, though lots of ecosystems and most large wild animals are at high risk.

>>ajross+us2
https://en.wikipedia.org/wiki/List_of_extinction_events

https://en.wikipedia.org/wiki/Clathrate_gun_hypothesis

Citation: The associated period of massive carbon release into the atmosphere has been estimated to have lasted from 20,000 to 50,000 years. The entire warm period lasted for about 200,000 years. Global temperatures increased by 5–8 °C.[21]

The hot-models Sabine referred to are in range of 4.8 - 5.6 if I'm not mistaken...

>>pk-pro+qK4
So, to avoid engaging in a Gish Gallop on this issue, I'm going to ignore the specifics except to point out that neither of those links says anything about human extinction at all.

It is reasonable to be concerned. But deploying easily-refuted hyperbole makes your (our!) cause MORE likely to be ignored as crackpot nonsense, not less.