New answers tagged climate-change
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I don't know of any mechanism by which cosmic rays can produce substantial amount of CO2 in the atmosphere. Cosmic rays are fast protons and atomic nuclei from the sun and other stars bombarding the upper atmosphere, and have all kinds of subtle effects. They produce small quantities of beryllium 10, for example, but not substantial quantities of CO2. ...
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Popular Science says
"Within a week, the average global surface temperature would drop below 0°F. In a year, it would dip to –100°." The average global surface temperature is about 57°F (15°C), so you could guesstimate 8°F (4°C) per day.
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I think it's better if questions refer to events that either could happen or have already happened, but the answer to your question is that yes, the Earth would get slightly colder. As in this hypothetical situation the sunlight is only excluded for 24 hours, and the surface of the Earth is without sunlight for 12 hours of the day in any case, the adverse ...
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The CO2 is a greenhouse gas which causes a net heating effect as it retains additional solar radiation, the exact magnitude of this effect is still highly debated. The high altitude effects you've mentioned are often referred to as "jet exhaust shading" and it's estimated, based on some temperature data from the week after the 9/11 attacks in the US, that it ...
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An ice age will intervene long before the scenario you describe can come about. We are now living in an interglacial, and the next ice age is likely to start in a few thousand years time. A Little Ice Age could start sooner than that; the last one lasted for 450 years and ended in the early 19th century. Greenhouse warming will create problems before the ...
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There are several contributing factors,
livestock, Livestock is easy animals produce co2 but their methane is a bigger problem, methane is a better greenhouse gas than the co2 that the feed plants took in. Livestock waste is also a problem , people do not realize how much waste modern factory farms produce, specially when stored as a liquid is it ...
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If you want to exclude animals, better to say why does arable farming release so much greenhouse gas. I have heard the argument about rice fields before, and it may well be true, but you have to remember that arable farming is almost carbon neutral. It removes CO2 from the air and gives it back in the ways you mention. You could even have tractors powered by ...
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One thing that is being ignored in this discussion is the loss of the energy in one of nature's primary cooling systems. BY lowering the energy in wind we also lower the ability of wind to cool the world
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Have a look at the distribution of all carbon on earth and maybe it will tell you something. Carbonaceous rocks all created in a marine environment account for 99.95% of all carbon on earth (some 100 million billion tons). The next largest source is in fact the current oceans with approximately 0.038% of the total and finally we get to fossil fuels with 0.01%...
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It has been proposed to paint dark rooftops and roads white to reflect solar energy back to space. This should also work for deserts, although sand already has a high albedo. Applying a sealer of the same colour would not make much difference.
Conduction, convection and thermal radiation in sand has been studied by NASA. See also this post.
In daytime ...
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