Renewable energy generation with kites and drones

Airborne Wind Energy Systems (AWES) are a new kind of technology to harvest wind energy. The expensive and heavy tower and rotor of a conventional wind turbine are replaced by a light tether and an aircraft (flexible giant ...

Droughts boost emissions as hydropower dries up

When hydropower runs low in a drought, western states tend to ramp up power generation—and emissions—from fossil fuels. According to a new study from Stanford University, droughts caused about 10 percent of the average ...

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