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Posted: 1 year ago by dork:
So my grilfriend and i were debating (call me a nerd) but yeah she got me into it,and its fun but any ways we were talking about global warming. and she says its all non existant and the Earth is being heated by ''solar magnetic cycles" and its happened before and well i read an article (maybe on plime)(edit:yes i found it ) about mars's ice caps are also melting which would give evidence to her point. My point is that its too much of a coincedence that when humans released greenhouse gasses in the air the earth got warmer. and warmer faster than any other warming in earth's history. but now thinking about it maybe the solar magnetic cycle and the use of greenhouse gasses fuel global warming. What do you think?
Score: [-] 12 [+].
Posted: 1 year ago by tundramonkey:
To quote one of my heroes, Homer Simpson:
"A little from column A, a little from column B"
I'm a geoscientist, so I observe the Earth in the big picture, whenever possible. Our dear planet is 4.5 billion years old. In those 4.5 G.a., it's been WAY hotter, and WAY colder than now. The entire earth has been covered by glaciers in the past. Not the most recent ice age, which was baby in comparison, but ones that occured between 1 billion years and 500 million years ago. This theory is known as Snowball Earth.
The sun was also dimmer in the Earth's early history (about 3.5 - 4 billion years ago or so), but it has not shown any change in luminosity since then. Apparently the 'young sun' was weaker than our more mature sun now.
Only an idiot would think that humans aren't contributing to global warming, though. The ozone hole was caused completely by human activity, and articulate matter in the atmosphere has been observed to impact both regional and global climate.
P.S. dork: I'd recommend to you a dictionary and a grammar/sentence construction guide :)
edit: I've got a few links showing global climate change:
This one shows global temperature change over the Phanerozoic (the last 550 million years or so).
Score: [-] 59 [+].
Posted: 1 year ago by runninutes:
« tundramonkey : To quote one of my heroes, Homer Simpson:
"A little from column A, a little from column B" Oh, great. Now I don't have anything to add. :)
Score: [-] 5 [+].
Posted: 1 year ago by dork:
« tundramonkey : To quote one of my heroes, Homer Simpson:
"A little from column A, a little from column B"
I'm a geoscientist, so I observe the Earth in the big picture, whenever possible. Our dear planet is 4.5 billion years old. In those 4.5 G.a., it's been WAY hotter, and WAY colder than now. The entire earth has been covered by glaciers in the past. Not the most recent ice age, which was baby in comparison, but ones that occured between 1 billion years and 500 million years ago. This theory is known as Snowball Earth.
The sun was also dimmer in the Earth's early history (about 3.5 - 4 billion years ago or so), but it has not shown any change in luminosity since then. Apparently the 'young sun' was weaker than our more mature sun now.
Only an idiot would think that humans aren't contributing to global warming, though. The ozone hole was caused completely by human activity, and articulate matter in the atmosphere has been observed to impact both regional and global climate.
P.S. dork: I'd recommend to you a dictionary and a grammar/sentence construction guide :)
edit: I've got a few links showing global climate change:
This one shows global temperature change over the Phanerozoic (the last 550 million years or so). hahah i know i suck at writing. but yeah i made alot of edits and i forgot to also change the punctuation. but yeah i do also suck at writing and i was distracted by mulittasking.
Score: [-] 9 [+].
Posted: 1 year ago by BrownTrout:
« dork : ...i was distracted by mulittasking. What does your hair have to do with global warming?
Score: [-] 36 [+].
Posted: 1 year ago by Hoosker:
I was looking forward to the most recent hearings on Global Warming, but unfortunately they were postponed
Score: [-] 9 [+].
Posted: 1 year ago by Bornbad:
« tundramonkey : To quote one of my heroes, Homer Simpson:
"A little from column A, a little from column B"
I'm a scientist, so I observe the Earth in the big picture, whenever possible. Our dear planet is 4.5 billion years old. In those 4.5 G.a., it's been WAY hotter, and WAY colder than now. The entire earth has been covered by glaciers in the past. Not the most recent ice age, which was baby in comparison, but ones that occurred between 1 billion years and 500 million years ago. This theory is known as Snowball Earth.
The sun was also dimmer in the Earth's early history (about 3.5 - 4 billion years ago or so), but it has not shown any change in luminosity since then. Apparently the 'young sun' was weaker than our more mature sun now.
Only an idiot would think that humans aren't contributing to global warming, though. The ozone hole was caused completely by human activity, and articulate matter in the atmosphere has been observed to impact both regional and global climate.
P.S. dork: I'd recommend to you a dictionary and a grammar/sentence construction guide :)
edit: I've got a few links showing global climate change:
This one shows global temperature change over the Phanerozoic (the last 550 million years or so). I don't know. I'll stick with monkey on this. I like scientists.
Score: [-] 9 [+].
Posted: 1 year ago by tundramonkey:
Hey dork,
I have a few more links/articles you might want to check out before you resume your global warming debate with your girlfriend:
This one discusses the 'faint young sun' theory/paradox, as well as some of the surficial features on Mars. The colours of the site also make my eyeballs burn.
This image shows historical global sea level compared to present [which is set at 0]. As you can see, sea level has been much higher in the past, likely indicating that there has been little ice tied up in ice caps. Fun Fact: The Exxon Sea Level curve has been used in the past as a tool for oil exploration. Unfortunately, it's not very effective/useful, but it yields important information about our Earth's 'recent' history. This is a good article to explain it, but I'm not sure if you have access to science journals.
I read about this in the news the other morning, it mentions soot from factories in Asia affecting weather patterns here in North America.
If you really feel like being a science nerd [it takes one to know one ;)], there's a book online you can peruse... it's dry, slightly out-of-date, but gets the point across.
Score: [-] 32 [+].
Posted: 1 year ago by icepigs:
I agree that man has negatively effected the environment, but I think attributing global warming to man is pretty stupid.
as TundraMonkey pointed out, the earth has been waaaaaaay hotter and waaaaaay colder in it's 4000 years of existence (sorry, that was a jab at the creationists out there).
Will the earth get hotter? Yes.
Will the earth get colder? Yes.
If we could immediately clean up the environment and have the whole earth use "green" technologies, would it stop the increase in earth's temperature? Not at all.
Score: [-] 12 [+].
Posted: 1 year ago by dork:
« icepigs :
If we could immediately clean up the environment and have the whole earth use "green" technologies, would it stop the increase in earth's temperature? Not at all. But it would slow down the increase of temperature right?
Score: [-] 12 [+].
Posted: 1 year ago by icepigs:
« dork : But it would slow down the increase of temperature right? In my opinion (and I'm not a scientist), I think the change would be so infinitesimal that we wouldn't even notice.
Score: [-] 0 [+].
Posted: 1 year ago by dork:
« icepigs : In my opinion (and I'm not a scientist), I think the change would be so infinitesimal that we wouldn't even notice. i havent noticed global warming now. if it wasnt on tv i wouldnt know that the whole world was getting hotter by one degree
Score: [-] 12 [+].
Posted: 1 year ago by donteatpoop:
« dork : i havent noticed global warming now. if it wasnt on tv i wouldnt know that the whole world was getting hotter by one degree In Ohio, I have definately noticed global warming. The weather here has been rediculous for the last couple years. Also, have you noticed the increase in hurricane sizes and frequency? That's an effect of global warming.
Can we stop it? No. Can we be more responsible and allow the earth to follow its natural course of climate changes.
Score: [-] 0 [+].
Posted: 1 year ago by Bornbad:
« donteatpoop : In Ohio, I have definately noticed global warming. The weather here has been rediculous for the last couple years. Also, have you noticed the increase in hurricane sizes and frequency? That's an effect of global warming.
Can we stop it? No. Can we be more responsible and allow the earth to follow its natural course of climate changes. Get out of Ohio...now!
Score: [-] 12 [+].
Posted: 1 year ago by donteatpoop:
« Bornbad : Get out of Ohio...now! Why? I'll be on the f**king coast. Your California will be the next Atlantis.+
Score: [-] 9 [+].
Posted: 1 year ago by Bandit:
« dork : My point is that its too much of a coincedence that when humans released greenhouse gasses in the air the earth got warmer. You have a point!
This is exactly why I don't step on cracks in the sidewalk.
Score: [-] 0 [+].
Posted: 1 year ago by tundramonkey:
« dork : i havent noticed global warming now. if it wasnt on tv i wouldnt know that the whole world was getting hotter by one degree I have. Extensively, as a matter of fact. Our last ten or eleven winters have been unusually warm compared to the winters I remember as a kid - we've also been getting less snow. Up North, I've noticed the change even more; less snow means lower water levels in some of the lowlands, and the sea stays open longer and longer in the fall.
Couple this with seeing a 'brown smudge' of pollution in the sky when you're standing at about 70N, and it gets scary in a hurry.
Score: [-] 15 [+].
Posted: 1 year ago by rambler:
From one geoscientist to another: good collection of comments and links, tundramonkey.
It's clear that our earth and it's atmosphere has seen much higher amplitude variations through geological time (unaffected by man) than in recorded history.
It would be stupid, however, to disregard our effect on our planet, our biosphere and our co-inhabitants of the planet.
I've read quite a bit of SF, and books like those in Asimov's Foundation and Empire series, certainly open the mind to how short-lived beings (like us) can potentially fundamentally alter the planet/galaxy/universe, etc.
Score: [-] 14 [+].
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