The idea to build solar arrays shaped like a tree branches and leaves set off a controversy and turned the 13 year old who dreamed it up into a sensation.

The Eiffel Tower Goes Green:

The floor of the first story viewing platfrom of the Eiffel Tower is being redone with 36-millimetre-thick glass sheets, letting people see straight down to the ground. And the renovated platform will be ecologically friendlier thanks to solar panels and wind turbines, which will cover half of the tower’s hot water needs by generating some 8,000 kilowatt hours of electricity annually. yet another way Paris is minimizing its carbon footprint!