YONKERS - Yonkers Mayor Mike Spano and other city leaders planted a Tree of Diversity today in celebration of Earth Day.

The mayor says he planted the tree in the hope of making Yonkers a green city for future generations to enjoy.

He also said that he wanted to follow in the footsteps of former Mayor Michael Walsh, who planted a tree in the early 1900s.  The tree still stands on the City Hall grounds.

Spano says the city has already focused on becoming more green. In the past two years, 12,000 lights have been replaced by LED lights, which should bring $18 million in savings over the next 10 years.

Some of the city's vehicles have also been converted from gas to propane.