Miss Earth 2012, Alabang, Muntinlupa City, Philippines

Those who participate in the pageant are involved with humanitarian and environmental causes. The pageant winner is expected to be involved in international projects, which are also promoted during the pageant's broadcast. The delegates also take part in tree planting ceremonies, environmental and cultural immersion programs, sponsor visits and tours.
In October 2001, Miss Earth adopted the slogan "Beauties For a Cause", but it was in 2003 when the first "beauty for a cause" prize was awarded. In 2004, the Miss Earth Foundation was created to further the pageant's causes and to work with local and international groups and non-governmental organizations that are actively involved in conservation and improvement of the environment. The Miss Earth Foundation campaign focuses in educating the youth in environmental awareness. Its major project “I Love Planet Earth School Tour," teaches and distributes educational aides for school children.
The Miss Earth pageant has grown over the years, with an increasing number of countries participating each year. The number of national Miss Earth pageants has grown on every continent as well.
The Miss Earth pageant started to cohost in 2006 the United Nations Environment Programme's Champions of the Earth, an annual international environment awards established in 2005 by the United Nations to recognize outstanding environmental achievers and leaders at a policy level.