Can 100% renewable energy power the world? - Federico Rosei and Renzo Rosei
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========== Every year, the world uses
35 billion barrels of oil. This massive scale of fossil fuel
dependence pollutes the Earth and it won't last forever. Scientists estimate that we've consumed
about 40% of the world's oil. According to present estimates, at this rate, we'll run out of oil
and gas in 50 years or so, and in about a century for coal. On the flip side, we have abundant
sun, water, and wind. These are renewable energy sources, meaning that we won't use them up
over time. What if we could exchange
our fossil fuel dependence for an existence based
solely on renewables? We've pondered that question for decades, and yet, renewable energy still
only provides about 13% of our needs. That's because reaching 100% requires
renewa...