The dinosaurs got wiped out by a catastrophic meteor impact (or so we think). This is different. We are changing the climate at an accelerated pace that’s never been seen before. Species adapt to things over time. You can’t adapt if the weather isn’t stable, and things dip between super hot and super cold, or visa versa, they stay super hot or super cold. We have other examples of worlds like that in our solar systems, and they are dead worlds.
There have been at least five major mass extinction events in the history of this planet. What will be after us in the future won’t look like it does right now, but right now doesn’t look anything like it did before any of those five events either.
As the saying goes, life finds a way. We just won’t be around to witness it.
How do you know that the climate is changing at a pace never before seen? Were you there to see it? There have been many mass extinctions in Earth’s history. It’ll be fine.
We know what the climate was like in the past by looking at layers in the earth, tree rings, even carbon dating can sometimes given evidence of how the composition of the atmosphere was in the past. There a lot of neat chemistry that we can use to learn what composition the atmosphere and climate had. Obviously there is some amount of error in models, but we do know.
I think there are a lot of errors in the models. Tree rings can only go back so far because most of the early trees are now coal. And trees, while they do live for a long time, don’t live forever. Fossilization is rare and I don’t know if we can get weather data from fossilized tree rings. Carbon dating is useful for organic matter up to 60,000 years ago. The other methods used to determine what the atmosphere was in the past include studying ice samples from Antarctica but that’s only good for the time Antarctica froze till now, it was tropical at some point. Since most scientist think complex life has been around for 500 million years I don’t think we can really say we know exactly what the climate was like and how it changed anywhere past a certain time period.
Oh then in that case nbd that we take millions of species who were living in harmony with nature with us. Serves them right for . . . existing in the same 20,000 year period we did.
Millions of species will go down with us, some already have been relagated to extinction by our actions.
The dinosaurs got wiped out and new life flourished. The same will happen again.
The dinosaurs got wiped out by a catastrophic meteor impact (or so we think). This is different. We are changing the climate at an accelerated pace that’s never been seen before. Species adapt to things over time. You can’t adapt if the weather isn’t stable, and things dip between super hot and super cold, or visa versa, they stay super hot or super cold. We have other examples of worlds like that in our solar systems, and they are dead worlds.
There have been at least five major mass extinction events in the history of this planet. What will be after us in the future won’t look like it does right now, but right now doesn’t look anything like it did before any of those five events either.
As the saying goes, life finds a way. We just won’t be around to witness it.
He said, right after mentioning a catastrophic meteor impact.
The two aren’t equivalent. One of them was a one time event.
The sedimentation rate and thickness of K–Pg clay from three sites suggest rapid extinction, perhaps over a period of less than 10,000 years.
We’re much faster than that.
Thanks, i hate it.
Humanity wins again, take that meteor!
I need to laugh, bcz if I wasnt laughing, I’d be crying.
How do you know that the climate is changing at a pace never before seen? Were you there to see it? There have been many mass extinctions in Earth’s history. It’ll be fine.
We know what the climate was like in the past by looking at layers in the earth, tree rings, even carbon dating can sometimes given evidence of how the composition of the atmosphere was in the past. There a lot of neat chemistry that we can use to learn what composition the atmosphere and climate had. Obviously there is some amount of error in models, but we do know.
I think there are a lot of errors in the models. Tree rings can only go back so far because most of the early trees are now coal. And trees, while they do live for a long time, don’t live forever. Fossilization is rare and I don’t know if we can get weather data from fossilized tree rings. Carbon dating is useful for organic matter up to 60,000 years ago. The other methods used to determine what the atmosphere was in the past include studying ice samples from Antarctica but that’s only good for the time Antarctica froze till now, it was tropical at some point. Since most scientist think complex life has been around for 500 million years I don’t think we can really say we know exactly what the climate was like and how it changed anywhere past a certain time period.
xkcd: Earth Temperature Timeline
Oh then in that case nbd that we take millions of species who were living in harmony with nature with us. Serves them right for . . . existing in the same 20,000 year period we did.
Life is hard and unfair