（WORLD ENVIRONMENT DAY THEMES ）：
1974: There is Only one Earth.
1975: Human Settlements
1976: Water: Vital Resource for Life.
1977: Concerned about ozone layer destruction, soil erosion, soil degradation and deforestation.
（Ozone Layer Environmental Concern; Lands Loss and Soil Degradation; Firewood）
1978: Development Without Destruction
1979: Only one future for our children-development without.
Destruction）
The 1980s
1980: A New Challenge for the New Decade: Development without Destruction.
1981: Protection of Ground Water and human food chain, prevention and control of toxic chemical pollution (ground water; Toxic Chemicals in Human Food Chains and Environmental Economics）
1982: Commemorating the 10th anniversary of Stockholm Conference on Human Environment-Ten years after Stockholm (Renewal of Environmental Concerns) to improve environmental awareness.
1983: Managing and disposing hazardous waste (acid rain and energy).
1984: Desertification
1985: Youth: Population and the Environment.
1986: A Tree for Peace
1987: Environment and Shelter: More Than a Roof.
1988: When people put the environment first, development will last.
1989: Watch out for Global Warming (global warming; Global Warning）
The 1990s
1990: Children and the Environment
1991: Climate Change-Need for Global Partnership
1992: There is Only One Earth, Care and Share.
1993: Poverty and the environment-breaking the vicious circle.
1994: One Earth One Family.
1995: We the people: United for the global environment.
1996: Our Earth, Our Habitat, Our Home.
1997: For Life on Earth.
1998: For Life on Earth-Save Our Seas.
1999: Saving the earth means saving the future (Our Earth-Our Future-Just Save It! )
21st century
2000: environmental millennium, let’s act (2000 the environment millennium-time to act).
2001: Connect with the World Wide Web of Life.
2002: Give Earth a Chance.
2003: Water-2 billion people were born in it! The life of two billion people depends on it! （Water – Two Billion People are Dying for It! )
2004: Every man is responsible for the survival of the ocean (Wanted! Seas and Oceans——Dead or Alive? )
2005: build a green city and care for the earth’s home! （Green Cities—Plan for the Planet）
China theme: everyone participates in creating a green home
2006: Don’t turn dry land into desert (deserts and desertification-Don’t desert dry lands! )
China Theme: Ecological Security and Environment-friendly Society
2007: Melting ice-a hot topic? )
China Theme: Pollution Reduction and Environment-friendly Society
2008: promote low-carbon economy (Kick the Habit! Towards a Low Carbon Economy）
China Theme: Green Olympics and Environment-friendly Society
2009: The Earth Needs You-unite to Combat Climate Change.
China Theme: Reduce Pollution-Take Action.
2010: Many Species, One Planet, One Future.
China Theme: Low Carbon Emission Reduction and Green Life
2011: Forests:Nature at Your Service.
Theme of China: Building Ecological Civilization and Sharing a Green Future.
2012: Green Economy: Did you participate? （Green Economy: Does it include you? )
China theme: Green consumption, have you taken action?
2013: Think before eating and save.
China theme: breathe together and struggle together.
2014: Raise your voice not the sea level.
China Theme: Declaring War on Pollution
2015: Sustainable consumption and production
China theme: practicing green life
2016: Shout for Life
China theme: improving environmental quality and promoting green development.
2017: Connecting People to Nature.
China theme: Lucid waters and lush mountains are invaluable assets
2018: Beat Plastic Poll
China theme: Beautiful China, I am an actor.
2019: Defend the Blue Sky, I am the Beat Air Pollution.