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I have an idea to protect the Arctic ice from melting

Roswell

The effects of the ice melting is already being felt. Polar bears at risk of extinction. Sea levels rising, floods causing millions of homes lost and all the economic and political chaos that causes.

So how about the world spends billions of pounds creating a kind of freezer that suspend above the Arctic ice and artificially lowers the temperature in that area. 

Also, areas where wildfires are becoming regular problems such as California and Australia - the same could be done there. Use giant machines to artificially lower the local temperature.

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  • There's a huge problem - energy cannot be destroyed so to cool one place, you have to move the energy away to somewhere else which will heat that place.     Also, the effort in moving the energy will also generate more heat so the net effect of trying to cool something is that you actually generate heating.

  • in reply to Plastic

    Ah, I'm stumped now! There needs to be a way of moving that energy somewhere harmless. Could it be blasted out into space? Or deep down into the earth's molten crust?

  • in reply to Roswell

    Anything you do to move energy creates heat - so no, it's a problem.    Also, the amount of energy needed for what you're talking about is probably many times the entire energy production of the world.      The earth's temperature is completely driven by the sun - the energy levels are staggering.

  • in reply to Plastic

    Interesting article on Albido (measure of the diffuse reflection of solar radiation out of the total solar radiation) in Wikipedia:

    en.wikipedia.org/.../Albedo

    " ... Earth's average surface temperature due to its albedo and the greenhouse effect is currently about 15 °C. If Earth were frozen entirely (and hence be more reflective), the average temperature of the planet would drop below −40 °C. If only the continental land masses became covered by glaciers, the mean temperature of the planet would drop to about 0 °C. In contrast, if the entire Earth was covered by water – a so-called ocean planet – the average temperature on the planet would rise to almost 27 °C. ... ".

    White snow and clouds reflect quite a lot of solar radiation back in to space.  Maybe have artifical clouds, some white or refective material to combat greenhouse effect?

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  • in reply to Plastic

    Interesting article on Albido (measure of the diffuse reflection of solar radiation out of the total solar radiation) in Wikipedia:

    en.wikipedia.org/.../Albedo

    " ... Earth's average surface temperature due to its albedo and the greenhouse effect is currently about 15 °C. If Earth were frozen entirely (and hence be more reflective), the average temperature of the planet would drop below −40 °C. If only the continental land masses became covered by glaciers, the mean temperature of the planet would drop to about 0 °C. In contrast, if the entire Earth was covered by water – a so-called ocean planet – the average temperature on the planet would rise to almost 27 °C. ... ".

    White snow and clouds reflect quite a lot of solar radiation back in to space.  Maybe have artifical clouds, some white or refective material to combat greenhouse effect?

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