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• At 17, a student in Bangladesh used old laptop batteries, broken circuit boards, and parts from an old tube TV to build a solar-powered water purifier
• He buried tubes in his yard and cooled his house without air conditioning using an old geothermal system, a simple idea that sounds very tempting when the heat gets nasty
• Driving 100 kilometers in an electric car can cost just 2 or 3 euros compared with 10 to 15 euros in gasoline, a difference that is starting to hit wallets hard
• China has introduced the first electric vehicle with a sodium-ion battery capable of driving 400 km on one charge, a bet that could make the next generation of cars cheaper
• Soviet scientists released giant red king crabs into the Barents Sea in the 1960s to build a fishery, but decades later those invaders are still changing the seafloor
• A tiny albino river turtle was born in Manuripi and amazed the Bolivian Amazon again, a rare discovery that looks like a white signal in the middle of the forest
• India is sinking giant fabric tubes filled with sand 20 ft. underwater to create an invisible barrier against waves and try to rebuild beaches that are disappearing