This Machine Transforms Waste Into Walls

Forget Bitcoin. The hottest potential new currency lies in our trash bins, Arthur Huang says, and he’s built a portable recycling plant to prove it. His solar-powered Trashpresso turns plastic waste into small tiles that can be used to build walls and floors.

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This Is How Big Oil Will Die

It’s 2025, and 800,000 tons of used high strength steel is coming up for auction. The steel made up the Keystone XL pipeline, finally completed in 2019, two years after the project launched with great fanfare after approval by the Trump administration. The pipeline was built at a cost of about $7 billion, bringing oil from the Canadian tar sands to the US, with a pit stop in the town of Baker, Montana, to pick up US crude from the Bakken formation. At its peak, it carried over 500,000 barrels a day for processing at refineries in Texas and Louisiana.

But in 2025, no one wants the oil.

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