Some parts of Downtown Rochester looked a little dark Saturday night.

Businesses and communities in Rochester, across New York State, and around the world observed Earth Hour from 8:30 to 9:30 Saturday night.

The initiative is meant to bring awareness to energy consumption and get the world involved in making a more sustainable future.

This is the third annual hour of lights off.

Last year, more than 1 billion people participated. Lights dimmed on such icons as the Eiffel Tower in Paris, Sydney's Opera House, the Great Pyramids of Gaza and New York's Empire State Building.

Earth Hour