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https://xkcd.com/1732/
Stfu with your nonsense.
Earth warms up and cools down naturally that's a known fact. But over thousands of years, not 200. What we're witnessing right now is not natural and we have the data to support it.
Millions even, we haven't been this warm in millions of years! And same for our co2 concentrations. All done in the blink of an eye geologically speaking. We've reversed a natural Co2 trend in only 0.004% of the time!
The commenter above you and anyone in doubt desperately needs to see these graphs:
https://earth.org/data_visualization/a-brief-history-of-co2/
If we follow projections and do nothing to change our behavior we'll get to levels and temperatures not seen in hundreds of millions of years, all bascially instantly when compared to the the ability of life to evolve and adapt. Earth will survive, it's been through worse. Gonna be rough on the humans though. We were 10c temperature above where we were then, but it would be even worse now of we got back to those co2 levels, becaue of differences in orbit and solar activity.
Furthermore: we shouldn't care too much about the speed at which Earth heats or cools down on its own. If we know we're a significant factor alongside its natural processes, we should still contribute to the NET temperature being one that's appropriate for human life. If the Earth was heating up this fast naturally, we should still try to cool it down by artificial means, if possible.
You could say that. The earth in general changes temperature one degrees in a few millennium if it's in a hurry. Humanity is causing changes of a degree in a decade. It's unnaturally fast.
Just watch that xkcd graphic my dude. Somebody else already linked it. It makes the issue very clear and is quite scientifically based.
Yes, everything you said is factually true. That doesn't mean your interpreting it all correctly. We not just accelerated it, we where strolling along the path of planetary heating and then decided to step aboard the Starship Enterprise and screamed: "MR SULU WARP FACTOR NINE, STAT!"
We're fucking with systems (planetary weather patterns) we can't comprehend. And to solve it we again fuck with that system but now not by adding energy (heat) but by removing energy from it (wind, radiation)
I think both will have issues. But for now removing lots and lots of energy from the system will greatly benefit us.
In the end it will always come down to population control or going interplanetary as a species.
More people on this planet, in this system will always mean more heat. Remove the excess from the system and it will find its equilibrium again.
But.. Removing the excess sounds nice but isn't. Especially when you are deemed to be the excessive one.
You want to know where global warming can lead to? Look no further then Venus.
Billions of years ago there was no multi-cellular life.
Trillions of years ago there was no universe.
And it just doesn't matter how hot it was in the distant past. Our modern civilization with everything we now depend on (agriculture, technology and so on) was built in the last couple hundred to thousand years where the climate wasn't all that different from the 1800's. The issue is that it's now changing too fast for us to adapt.
If you're callous, you don't have to give a fuck about the plants or the wildlife, fuck what's "natural", go ahead and kill all polar bears and pandas! But global warming is going to cause famines and disasters for us that will force billions of people to migrate north, which will trigger an upheaval of all societies and a global war that could turn nuclear. Because the systems we have in place now aren't designed for a hotter climate, and the crops we have now can't handle it.
How hot the dinosaurs had it doesn't factor into it at all.
And temperature changes in 1700 and 1800 were much slower. Coincidence? I think not.
Number of cars versus temperature
This user has 600 comments in their one month since joining. That's 20 comments per day. Maybe they should try to spend less time commenting falsehoods, and more time reading?
I have little tolerance left for your climate change denialism, and a similarly miniscule need to "engage" via misinformation or with you and your ilk. So here's my reply. Cherish it, print it out, put it in your back pocket if you want. I don't care.
What is this, mumble rap for science deniers? Just riffing this bullshit on the fly.
Exactly, the closer you get to the equator, the colder it gets.
-500F is about 40 degrees F colder than absolute zero. It has never been that cold anywhere in the universe. -200F is certainly more "actually possible in our current understanding of physics", but it's over 100 degrees colder than the current Martian temperature and thus also not a temperature it's ever been on Earth, even at the heart of the coldest Ice Age directly on the poles. While Earth's average temperature has certainly fluctuated, the temperatures you're talking about are so cold that all life on Earth would have gone extinct.
So true. And before that don’t forget that Earth didn’t even exist, because it was just a clump of dust.
Why are you surprised? How do you think the nukes would have triggered a ice age?
Just checked from wikipedia, the yucatan impact was "The kinetic energy of the impact was estimated at 72 teratonnes of TNT (300 ZJ)." The Little Boy dropped on hiroshima was 15 kilotons of TNT. To say theres a vast difference is a understatement of the century.
You either have wrong understanding or no understanding of physics.
What is this imperial temperature crap? 🤣
Science in the real world is done with Kelvin.
Edit: Oh shit, you aren't @[email protected]. Sorry about that.
I was being sarcastic, you idiot.
Username checks out
Yeaaah...
I'm gonna go ahead and say you should keep your thoughts to yourself.
Yes, the world was a lot hotter in the distant past, but that's because the carbon in the biosphere was gradually sequestered by natural geologic processes, leading to a gradual cooling over hundreds of millions of years. We're now partially undoing that, by pumping and digging the stuff back up and burning it.
If fossil fuels hadn't come along, it's possible that the long-term cooling of the Earth would have been a problem, eventually. Nobody wants another Ice Age. But we've gone waaaay past in the opposite direction now. We really, really don't want to see an "age of the dinosaurs" climate, with its pole-to-pole super-hurricanes, continent sized mega droughts, and other forms of extreme weather that human civilization has zero experience coping with.
Over a long enough timeline, the high temperatures will force a sharp decline in human population and economic activity. But this isn't earth dictating its own temperature any more than a guy with a gun to his head is an example of a bullet dictating its own velocity.