Environmentalists worldwide are celebrating Earth Day on Monday with events highlighting the effects of climate change and ways to protect the environment.
Earth Day, 2013

1
Indian activists of the People for the Ethical Treatment of Animals (PETA) with bodies painted in green hold placards during a vegetarianism campaign in Hyderabad, India, April 22, 2013.

2
A girl in traditional headwear joins a protest against plans by a private developer for a reclamation project along Manila's Bay, as they celebrate Earth Day on April 21, 2013, in the Philippines.

3
A volunteer, wearing a disposable cup costume, participates in an environmental campaign as part of Earth Day celebrations in front of Seoul City Hall in Seoul, South Korea, April 22, 2013.

4
School children collect rubbish from Karachi's Clifton beach early morning April 22, 2013, during a cleaning campaign as part of the commemoration of Earth Day.