9 votes

Why can't we increase cloud coverage of the Earth to reduce mean temperature by flooding basins to increase evaporation?

Barring the technical feasibility of what you are proposing, there's a few points to consider which make your proposal problematic. Water vapor is a greenhouse gas. If you increase evaporation, you ...
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  • 12.7k
9 votes
Accepted

Would covering part of Lake Mead with large sheets of bubble wrap reduce the amount of water lost to evaporation?

Something similar has been done with plastic balls. I'd guess they're much easier to manufacture, since it doesn't have to be a continuous sheet. It sounds like there is some local water savings, ...
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6 votes
Accepted

Can we beam heat into space?

If we were to feed this big beam with electricity, would this contribute to reducing the heat on earth? No. The Earth's energy imbalance is estimated to be 0.77 watts per square meter. Multiplied by ...
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  • 20.4k
4 votes
Accepted

Could a nuclear explosion in the Atlantic Ocean during the hurricane season trigger a hurricane?

Hurricanes can only form when oceans reach a specific temperature. The picture below shows the tracks of hurricanes in the Atlantic Ocean for a 150 year period from 1848. All the tracks are in the ...
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  • 21.8k
3 votes

Why can't we increase cloud coverage of the Earth to reduce mean temperature by flooding basins to increase evaporation?

Clouds form when moist air rises in a convection cell - cloud coverage area is largely controlled by the size of the convection cells, not moisture content. When temperature differences arise between ...
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2 votes

Would covering part of Lake Mead with large sheets of bubble wrap reduce the amount of water lost to evaporation?

Evaporation requires energy (~680 kWh / m³ water) and as always this is mainly supplied by the sun. At Lake Mead I estimate ~ 2000 kWh/m² per year of incoming solar radiation. A highly reflective ...
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  • 143
2 votes

Solutions to the global water shortages by damming the Baltic Ocean and the White Sea

There is no "Global" water shortage Water is a geopolitical issue, the biggest is clean water in 3rd world and any available water in more arid regions. The nations with the biggest water ...
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2 votes

Solutions to the global water shortages by damming the Baltic Ocean and the White Sea

If you're only asking "would there be enough water replaced for both the Baltic Sea region and Central Asia", the answer is simple mathematics. HELCOM states the size of the Baltic Sea ...
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  • 786
2 votes

Why is iron an essential part of iron fertilization and carbon sink?

That's largely because iron is scarce in seawater. It is what is known as a limiting factor -- certain physiological processes can't occur in the absence of iron, so even if nutrients such as nitrogen ...
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  • 3,130
2 votes

Could pumping ocean water into desert areas help reduce sea level rise?

No. Imagine making another Lake Superior, the 3rd most voluminous lake on Earth, which according to Wikipedia holds 10% of the world's fresh surface water (excluding the ice in Antarctica). It has a ...
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  • 10.8k
1 vote

How much energy would be required to actively reduce the temperature of the oceans of Earth by 1℃?

Heat capacity is the amount of thermal energy it requires to heat a gram of "A substance" one Kelvin degree. Salt water of oceanic variant average salinity (3.5%) has specific heating of 3....
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1 vote

How much energy would be required to actively reduce the temperature of the oceans of Earth by 1℃?

Assuming a surface ocean temperature of 288 K and a deep ocean temperature of 277 K, let's assume a mean temperature around 282.5 K. The specific heat capacity of seawater at constant pressure is 3,...
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  • 29
1 vote

How to reduce the atmospheric temperature artificially?

For any late readers: Atmospheric Heat Reduction is possible through the conversion of incoming solar energy to visible light, which is not 'blocked' by green house gases(GHG). A portion of the ...
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