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Science Fact Friday: Greenhouse Gases by Alithographica Science Fact Friday: Greenhouse Gases by Alithographica

Skeptics claim that greenhouse gas levels fluctuate naturally - and while this is true, it does not tell the whole story. 

By studying gases trapped in ancient ice, scientists have determined that CO2 levels fluctuated between 180 ppm during ice ages and 280 ppm in warmer periods. As of January 2017, levels are currently at 406 ppm. This may not seem like a significant amount but consider that only 100 ppm separates an ice age from a warm period, and those shifts occur over thousands of years. We have increased global CO2 levels by nearly 50% - 120 ppm - in 300 years, with a lot of that occurring in the last 70. Moreover, some greenhouse gases like chlorofluorocarbons (CFCs) are entirely manmade and were not present in the atmosphere before we created them.

And that concludes this week’s Science Fact Friday.

They’re always included on the image but here are easy links to my sources btw: ACS / LiveScience / NASA

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:iconeveywinter:
Eveywinter Featured By Owner Mar 14, 2017  Hobbyist General Artist
I am surprised that people do not use Solar Energy as much as they could. I mean, it's literally ALWAYS going to be there as long as the sun! (Or until we block up the atmosphere with polloutions <.<). So, if we have all of this high tech stuff, but a need for power, why not use solar energy for most everything? Or you could use wind energy. Or water. And i'm sure there are more things we could use, if we just looked. But seriously humankind, why do you have to be like this ;w;
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:iconchaospunk666:
chaospunk666 Featured By Owner Edited Mar 29, 2017  Student Digital Artist
Solar panels are still pretty expensive. Also, they glare a lot, which people don't like. Other variants are being designed, so there's hope!

Wind energy has the problem that the turbine blades cause a stroboscope effect when the sun is behind them, plus they're huge and "ugly" (and there are other problems, as they need a particular type of terrain that may have to be cleared). Traditional water energy has the issue of huge dams that aren't exactly friendly to the environment downstream (and drown everything where the dam lake is). There are alternatives here, too, though I'm not sure how much research is done.
Geothermal energy has its own issues (earthquakes, for instance), not just availability, but Iceland is way ahead there for obvious reasons.

Many of those are excuses if you ask me (sure, it all costs money, there's technical and environmentl issues still to be overcome, but come on), but that's part of what keeps the use of renewable energies from spreading faster. Then of course there's the lobby of fossil energies. They got money governments want to keep.

ETA: Man-made global warming sucks.
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:iconfor-using-muro:
for-using-muro Featured By Owner Mar 11, 2017  Hobbyist General Artist
I'm surprised that most energy companies aren't switching to sustainable energy by now, it's become much cheaper, and all of them are even aware of climate change, because they made up all the denialism.
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:iconobelis:
Obelis Featured By Owner Mar 10, 2017  Hobbyist General Artist
It's like we're all slowly starting to cook. :ohnoes:

And now some conspiracy theorists might say that aliens caused the global warming to eventually get a big amount of human soup. :lol:
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:iconalithographica:
Alithographica Featured By Owner Mar 11, 2017  Professional
Mmmm, human crockpot. Yummy 
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:iconobelis:
Obelis Featured By Owner Mar 11, 2017  Hobbyist General Artist
Could feed so many starving countries.
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:icondelibird37:
Delibird37 Featured By Owner Mar 10, 2017  Professional Digital Artist
the earth is moving too quickly 
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:icondelibird37:
Delibird37 Featured By Owner Mar 10, 2017  Professional Digital Artist
greenhouse gasses exist, of course, but they don't really matter since any excess heat that collects on the earth just flys off the side.
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:iconalithographica:
Alithographica Featured By Owner Mar 10, 2017  Professional
well that would explain why I'm so damn cold right now, no wonder my landlord never turns the heat up properly, she knows it's just gonna blow away
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:icondelibird37:
Delibird37 Featured By Owner Mar 10, 2017  Professional Digital Artist
hehehe i hope you have a nice day ^^
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:iconalithographica:
Alithographica Featured By Owner Mar 10, 2017  Professional
Haha you too
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:iconn1ght0wl5:
N1GHT0WL5 Featured By Owner Mar 10, 2017  Student General Artist
Huh. Fascinating!
I always love your fact Fridays haha
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:iconalithographica:
Alithographica Featured By Owner Mar 10, 2017  Professional
Thanks! :D I live to overinform.
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:iconn1ght0wl5:
N1GHT0WL5 Featured By Owner Mar 10, 2017  Student General Artist
Welcome! haha
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