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re: True or False: climate change

Posted on 3/13/17 at 4:07 pm to
Posted by Gaspergou202
Metairie, LA
Member since Jun 2016
13509 posts
Posted on 3/13/17 at 4:07 pm to
quote:

I'm obviously going with false.

So in your simplified what if, you left off strength of stellar radiation reaching said planet. How much radiation is being expelled and how far away the planet is from it's star, and what are the planetary conditions.

So for example after pumping all that " massive amounts of green house gasses, water vapor, CO2 etc.. over hundreds of years. " on Pluto the atmosphere would be identical since it would all freeze out on the surface. On Mars the polar ice caps would increase in an immeasurable way. On Mercury it would disappear into space. And on Venus, Jupiter, Saturn, Uranus, and Neptune it would be unnoticed in the vast atmospheres. An atmosphere like ours can only exist with photosynthetic life, and life changes everything.

Terraforming is easy in Sci-Fi books and movies. But this is not fiction.

Because of life, a metallic core that creates a powerful magnetic field, liquid water, and plate tectonics, Earth would experience negligible change. All of these "pollutants" occur naturally and in very large amounts on earth. All of these chemicals are involved in natural geological/biological cycles that take them from the surface to underground and back again.

Let's look at CO2. Man introduced carbon comes from fossil fuels. This was all part of the biosphere! Coal came from plants that grew so fast that they were "sequestered" before decay organisms could recycle them. Oil and natural gas come from single called organisms that got buried on the sea floor before they can be recycled. Oil and natural gas naturally leak in very significant amounts and life recycles it. Coal seams weather away and are recycled, and ancient buried carbon is pumped to the surface in volcanic eruptions that occur daily worldwide. Finally most of the American West and Florida are built on limestone that was laid down as coral and carbon rich shells! Most of the carbon would be absorbed into the biota of the planet because of increased plant growth. More limestone, oil and gas deposition -"sequestered"!

Finally, let's look at real world terraforming. Oxygen producing life began spewing out billions of tons of poisonous O2 about 2.7 billion years ago, but free atmospheric oxygen did not appear until 2.45 billion years ago. That took 250 million years for the incredible amount of tons of chlorophyll equipped life forms to overcome the absorbtive capacity of the Earth!

Hundreds of years? Good luck with that!
This post was edited on 3/13/17 at 4:12 pm
Posted by Iosh
Bureau of Interstellar Immigration
Member since Dec 2012
18941 posts
Posted on 3/13/17 at 4:09 pm to
quote:

Let's look at CO2. Man introduced carbon comes from fossil fuels. This was all part of the biosphere!
Emphasis on "was."
Posted by bmy
Nashville
Member since Oct 2007
48203 posts
Posted on 3/13/17 at 5:02 pm to
quote:


So in your simplified what if, you left off strength of stellar radiation reaching said planet. How much radiation is being expelled and how far away the planet is from it's star, and what are the planetary conditions.

So for example after pumping all that " massive amounts of green house gasses, water vapor, CO2 etc.. over hundreds of years. " on Pluto the atmosphere would be identical since it would all freeze out on the surface. On Mars the polar ice caps would increase in an immeasurable way. On Mercury it would disappear into space. And on Venus, Jupiter, Saturn, Uranus, and Neptune it would be unnoticed in the vast atmospheres. An atmosphere like ours can only exist with photosynthetic life, and life changes everything.


Let's keep it simple... three duplicate planets. Same exact parameters. Same atmosphere. Same earths. Same everything. Three scenarios.. and a greatly accelerated timescale.
quote:


Will the 3 planets have the same weather patterns and ultimately climate?


Planet 0 (baseline)- Humans/life exists as it does today. Greenhouse gas emissions, total carbon released, water vapor concentration is within current levels, etc. Let's let this planet be a control in this hypothetical experiment.

Planet 1 (4x more in atmosphere)- Humans/life exists as it does today but humans have intentionally began releasing greenhouse gasses, water vapor, CO2, etc. into the atmosphere at incredible levels and over 1,000 years the amounts in the atmosphere is 4x that of Planet 0.

Planet 2 (1/4th in atmosphere)- Humans/life exists as it does today but humans have intentionally began reducing the amount of greenhouse gasses, water vapor, CO2, etc. in the atmosphere at incredible levels and over 1,000 years the amounts have shrunk to 1/4x of Planet 0 levels.
This post was edited on 3/13/17 at 5:03 pm
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