Young people mark Earth Day by going pantless in Harbin   

哈尔滨地铁潮人呼吁低碳 俊男靓女穿底裤乘车(图)

(ECNS) – Young people stripped off their pants on Subway Line 1 in Harbin, capital city of Northeast China's Heilongjiang province, on Tuesday to mark the 45th World Earth Day.

Over 40 young people and expats wore their underwear to raise public awareness about energy saving and emissions reduction.

Some passengers marveled at the scene, but quickly learned about the activity's purpose to promote low-carbon living.

The move was an imitation of the No Pants Subway Ride started in 2002 by New York-based prank collective Improv Everywhere.