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Click is back in the USA this week with a sustainability special. Spencer Kelly heads to Babcock Ranch, Florida - America's first sustainable town - built from the ground up and powered almost entirely by solar energy. He takes a spin in its solar-powered autonomous shuttle, visits their new battery storage facility and drops in to meet the estate's early settlers.
Sticking with renewable, Kate Russell heads to California to see a new green energy storage solution in the form of a Gravity Train. The new concept harvests energy created by a train free-rolling down a hill. It relies on gravity to operate - something in no short supply.
From the UK Lara Lewington reviews the latest in Augmented Reality applications, and back in Florida, Spencer visits the world's leading hurricane and wind research laboratory. The University of Miami's giant hurricane simulator tank provides data on the very real dangers hitting America's coasts. Part of the work conducted there focuses on the importance of coral reefs absorbing blows, protecting shorelines, so Nick Kwek heads down under to the world's largest coral collection, the Great Barrier Reef, Australia. Special underwater drones are being developed to help monitor the endangered reef and take out predators posing harm.