From Singapore to Buenos Aires, cities around the world turned off their lights Saturday to mark Earth Hour, with this year's event highlighting the...
From Singapore to Buenos Aires, cities around the world turned off their lights Saturday to mark Earth Hour, with this year's event highlighting the...
According to the Costa Rican Electricity Institute, the event helped conserve 5 percent of the nation's daily energy consumption, the equivalent of daily energy use for 1,300 homes.
