139 maassa 100% uusiutuvaa 2050 mennessä?

By the year 2050, a total of 139 countries could get their energy only from renewable sources such as water, wind and sun.
Researchers at the Stanford University say this would reduce energy consumption, since renewables are more efficient than fossil fuels, but also help create 24 million jobs, and reduce air pollution deaths by up to seven million per year.

Researchers from the university also assert that the conversion to all green energy will spare more than $20 trillion in health and climate costs every year.  [emp]

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