Scientists produce footwear in the world from algae.
They’ve developed and produced the first algae-based, renewable flip flops in the world. An estimated 3 billion petroleum-based ff find their way into waterways and the ocean each year, constituting a major plastic pollution source for marine environments. Depending on how you do the chemistry, you can make hard foams or soft foams from algae oil, you can make algae-based, renewable surfboards, flip flops, polyurethane athletic shoes, car seats or even tires for your car.
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Air pollution: Tyre and brake fatigue compound an exhausting problem.
Electric cars use tyres and brakes too, even if they emit less. A lot of non-exhaust pollution from tyres and brakes winds up in rivers, streams and lakes. They produce particulate matter which is more harmful for humans than gas pollutants like ozone and NO2.
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