China is investing tens of billions of dollars in renewable energy around the world.
"Turning to renewables for new power generation is not simply an environmentally conscious decision, it is now — overwhelmingly — a smart economic one."
Only seven percent of the country's energy was generated from coal in 2017.
The new roofs can net you $8,000 over 30 years.
This is a major milestone in renewable energy.
"We know the science is absolutely real because we can see it happening in the sun every day."
"Chemical looping" burns fossil fuels while trapping emissions.
"We're basically getting that big battery we want for free."
It could become a source of clean energy by 2025.
This futuristic idea is a breath of fresh air for wind energy.
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