Posted by Earthr.org Content Team on 21 Aug, 2018
These houses are bulletproof, fireproof, and can withstand earthquakes. They also maintain a comfortable temperature, produce zero carbon emissions, and are powered by solar and methane gas from recycled waste. By filling the bottles with sand, then binding them together with mud and cement, strong, solid walls are formed. They can be used to make homes up to three stories, using over 14,000 bottles! With over three million such bottles thrown away every day in Nigeria (and 130 million per day in the U.S.), there is an abundance of building material available for these thrifty builders.
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