

2025 Calendar: Environmental Days
This calendar was originally published in 2023 and has been updated to reflect dates for the year 2025.
Environmental observances and world day campaigns are a great way to raise awareness for a cause that is meaningful to you or your company. This Calendar of Environmental Awareness Days can be used to:
- Raise awareness for your own corporate sustainability efforts
- Start your own local campaign
- Find events you can support in your own community
- Get ideas for how to take action
For example, you could promote your company’s water conservation efforts on World Water Day or your efforts to reduce emissions on World Ozone Day. You could also find and team up with organizations in your local community to make a bigger impact.
This calendar includes a short description, event link, and organizing company or foundation, where applicable. Some of these days have been proclaimed by a state, city, or county, and spread outward. Some are rooted in tradition or history, and some have come from grassroots organizers to promote a cause. Some even have an unknown origin.
For more sustainability ideas, please check out 50 Sustainability Ideas for the Workplace.
Use the filter tool below to sort by event type (environment, food, animal, health, and safety) and event organizer, where applicable.
If you see an event that needs to be updated or added, please reach out to us. Enjoy!
December
04decAll DayWildlife Conservation Day
Event Details
World Wildlife Day (WWD) is an opportunity to celebrate the many beautiful and varied forms of wild fauna and flora and to raise awareness of the multitude of benefits that
Event Details
World Wildlife Day (WWD) is an opportunity to celebrate the many beautiful and varied forms of wild fauna and flora and to raise awareness of the multitude of benefits that their conservation provides to people. At the same time, the Day reminds us of the urgent need to step up the fight against wildlife crime and human-induced reduction of species, which have wide-ranging economic, environmental and social impacts. Given these various negative effects, Sustainable Development Goal 15 focuses on halting biodiversity loss.
(from un.org)
Organizer
WWF
The world’s leading conservation organization, WWF works in 100 countries and is supported by more than one million members in the United States and close...
The world’s leading conservation organization, WWF works in 100 countries and is supported by more than one million members in the United States and close to five million globally. WWF's unique way of working combines global reach with a foundation in science, involves action at every level from local to global, and ensures the delivery of innovative solutions that meet the needs of both people and nature.
Event Details
#StopSoilErosion is at the heart of the Global Soil Partnership’s mandate as demonstrated by the Global Symposium on Soil Erosion. We work to ensure that people have safe and nutritious
Event Details
#StopSoilErosion is at the heart of the Global Soil Partnership’s mandate as demonstrated by the Global Symposium on Soil Erosion. We work to ensure that people have safe and nutritious food to ensure active and healthy life without endangering essential ecosystems services.
Organizer
United Nations
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the...
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter.
11decAll DayInternational Mountain Day
Event Details
Mountains are home of the 15% of the world´s population and a quarter of the world’s land animals and plants. They provide freshwater for everyday life to half of humanity.
Event Details
Mountains are home of the 15% of the world´s population and a quarter of the world’s land animals and plants. They provide freshwater for everyday life to half of humanity. Their conservation is a key factor for sustainable development and is part of Goal 15 of the SDGs.
Organizer
United Nations
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the...
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter.
January
Event Details
The Avian Welfare Coalition’s National Bird Day campaign aims to reduce the suffering of birds by raising public awareness of the destructive bird trade, the realities of cruel bird breeding
Event Details
The Avian Welfare Coalition’s National Bird Day campaign aims to reduce the suffering of birds by raising public awareness of the destructive bird trade, the realities of cruel bird breeding mills, and ways to improve the welfare of birds already in captivity.
#NationalBirdDay
#DoBetter4Birds
#MoreBeautifulWild
Organizer
28janAll DayZero Emissions Day
Event Details
Also referred to as ZeDay, the initiative started back in 2008 in Nov Scotia as a day to minimize the use of electricity generated by fossil fuels. #ZeroEmissionsDay #zeday
Event Details
Also referred to as ZeDay, the initiative started back in 2008 in Nov Scotia as a day to minimize the use of electricity generated by fossil fuels.
#ZeroEmissionsDay
#zeday
February
02febAll DayWorld Wetlands Day
Event Details
February 2 each year is World Wetlands Day to raise global awareness about the vital role of wetlands for people and our planet. This day also marks the date of
Event Details
February 2 each year is World Wetlands Day to raise global awareness about the vital role of wetlands for people and our planet. This day also marks the date of the adoption of the Convention on Wetlands on February 2, 1971, in the Iranian city of Ramsar on the shores of the Caspian Sea.
#WorldWetlandsDay
Organizer
Convention on Wetlands
The Convention on Wetlands, called the Ramsar Convention, is the intergovernmental treaty that provides the framework for the conservation and wise use of wetlands and...
The Convention on Wetlands, called the Ramsar Convention, is the intergovernmental treaty that provides the framework for the conservation and wise use of wetlands and their resources.
27febAll DayInternational Polar Bear Day
Event Details
Every year, this global event draws attention to the challenges polar bears face in a warming Arctic—and how we each can help.
Event Details
Every year, this global event draws attention to the challenges polar bears face in a warming Arctic—and how we each can help.
Organizer
March
03marAll DayWorld Wildlife Day
Event Details
On 20 December 2013, at its 68th session, the United Nations General Assembly (UNGA) proclaimed 3 March, the day of signature of the Convention on International Trade in Endangered Species
Event Details
On 20 December 2013, at its 68th session, the United Nations General Assembly (UNGA) proclaimed 3 March, the day of signature of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), as UN World Wildlife Day to celebrate and raise awareness of the world’s wild animals and plants.
Organizer
United Nations
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the...
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter.
14marAll DayInternational Day of Action for Rivers
Event Details
The International Day of Action for Rivers is a day dedicated to solidarity – when diverse communities around the world come together with one voice to say that our rivers
Event Details
The International Day of Action for Rivers is a day dedicated to solidarity – when diverse communities around the world come together with one voice to say that our rivers matter.
Since 1985, International Rivers has been at the heart of the global struggle to protect rivers and the rights of communities that depend on them.
18marAll DayGlobal Recycling Day
Event Details
Global Recycling Day was created in 2018 to help recognize, and celebrate, the importance recycling plays in preserving our precious primary resources and securing the future of our planet. It
Event Details
Global Recycling Day was created in 2018 to help recognize, and celebrate, the importance recycling plays in preserving our precious primary resources and securing the future of our planet. It is a day for the world to come together, and put the planet first.
#recyclingheroes
21marAll DayInternational Day of Forests
Event Details
Forests are part of your life in more ways than you realize. When we drink a glass of water, write in a notebook, take medicine for a fever or build
Event Details
Forests are part of your life in more ways than you realize. When we drink a glass of water, write in a notebook, take medicine for a fever or build a house, we do not always make the connection with forests. And yet, these and many other aspects of our lives are linked to forests in one way or another. Forests, their sustainable management and use of resources, including in fragile ecosystems, are key to combating climate change, and to contributing to the prosperity and well-being of current and future generations. Forests also play a crucial role in poverty alleviation and in the achievement of the Sustainable Development Goals (SDGs).
Celebrated every March 21.
Organizer
United Nations
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the...
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter.
Event Details
World Wood Day is a cultural event on March 21st, the vernal equinox, to highlight wood as an eco-friendly and renewable biomaterial and to raise awareness on the key role
Event Details
World Wood Day is a cultural event on March 21st, the vernal equinox, to highlight wood as an eco-friendly and renewable biomaterial and to raise awareness on the key role wood plays in a sustainable world through biodiversity and forest conservation. The day serves as a reminder of the importance and true value of wood and its responsible uses.
Organizer
International Wood Culture Society
Wood is good and is an eco-friendly renewable biomaterial. The International Wood Culture Society (IWCS) is a non-profit non-governmental international network of wood enthusiasts; dedicated...
Wood is good and is an eco-friendly renewable biomaterial. The International Wood Culture Society (IWCS) is a non-profit non-governmental international network of wood enthusiasts; dedicated to the research, education, and promotion of global wood culture.
Event Details
In 2010, the UN recognized “the right to safe and clean drinking water and sanitation as a human right that is essential for the full enjoyment of life and all
Event Details
In 2010, the UN recognized “the right to safe and clean drinking water and sanitation as a human right that is essential for the full enjoyment of life and all human rights.”
Organizer
United Nations
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the...
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter.
April
Event Details
In spring 1970, Senator Gaylord Nelson created Earth Day as a way to force this issue onto the national agenda. Twenty million Americans demonstrated in different U.S. cities, and it
Event Details
In spring 1970, Senator Gaylord Nelson created Earth Day as a way to force this issue onto the national agenda. Twenty million Americans demonstrated in different U.S. cities, and it worked! In December 1970, Congress authorized the creation of a new federal agency to tackle environmental issues, the U.S. Environmental Protection Agency.
Celebrated on April 22 every year
#EarthDayEveryDay
May
Event Details
May is National Bike Month, sponsored by the League of American Bicyclists and celebrated in communities from coast to coast. Established in 1956, National Bike Month is a chance to
Event Details
May is National Bike Month, sponsored by the League of American Bicyclists and celebrated in communities from coast to coast. Established in 1956, National Bike Month is a chance to showcase the many benefits of bicycling — and encourage more folks to give biking a try.
Event Details
Bees and other pollinators, such as butterflies, bats and hummingbirds, are increasingly under threat from human activities. To raise awareness of the importance of pollinators, the threats they face and
Event Details
Bees and other pollinators, such as butterflies, bats and hummingbirds, are increasingly under threat from human activities. To raise awareness of the importance of pollinators, the threats they face and their contribution to sustainable development, the UN designated 20 May as World Bee Day
#WorldBeeDay #SavetheBees
Organizer
United Nations
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the...
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter.
22mayAll DayInternational Day for Biological Diversity
Event Details
While there is a growing recognition that biological diversity is a global asset of tremendous value to present and future generations, the number of species is being significantly reduced by
Event Details
While there is a growing recognition that biological diversity is a global asset of tremendous value to present and future generations, the number of species is being significantly reduced by certain human activities.
Organizer
United Nations
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the...
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter.
Event Details
American Tortoise Rescue, a nonprofit organization established in 1990 for the protection of all species of tortoise and turtle, is sponsoring our annual World Turtle Day® on May 23. The
Event Details
American Tortoise Rescue, a nonprofit organization established in 1990 for the protection of all species of tortoise and turtle, is sponsoring our annual World Turtle Day® on May 23. The day was created as a yearly observance to help people celebrate and protect turtles and tortoises and their disappearing habitats around the world.
(from worldturtleday.org)
June
05junAll DayWorld Environment Day
Event Details
The United Nations, aware that the protection and improvement of the human environment is a major issue, which affects the well-being of peoples and economic development throughout the world, designated
Event Details
The United Nations, aware that the protection and improvement of the human environment is a major issue, which affects the well-being of peoples and economic development throughout the world, designated 5 June as World Environment Day. The celebration of this day provides us with an opportunity to broaden the basis for an enlightened opinion and responsible conduct by individuals, enterprises and communities in preserving and enhancing the environment. Since it began in 1974, it has grown to become a global platform for public outreach that is widely celebrated in more than 100 countries.
Organizer
United Nations
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the...
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter.
07junAll DayWorld Food Safety Day
Event Details
Food safety is the absence — or safe, acceptable levels — of hazards in food that may harm the health of consumers. Food-borne hazards can be microbiological, chemical or physical
Event Details
Food safety is the absence — or safe, acceptable levels — of hazards in food that may harm the health of consumers. Food-borne hazards can be microbiological, chemical or physical in nature and are often invisible to the plain eye: bacteria, viruses or pesticide residues are some examples.
Organizer
United Nations
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the...
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter.
Event Details
On World Oceans Day, people around our blue planet celebrate and honor our one global ocean, which connects us all. Get together with your family, friends, community, and the planet
Event Details
On World Oceans Day, people around our blue planet celebrate and honor our one global ocean, which connects us all. Get together with your family, friends, community, and the planet to start creating a better future. By working together, we can — and will — protect our shared ocean. Join this growing global celebration on 8 June with continuing engagement year-round!
Takes place every June 8
#WorldOceansDay
Organizer
The Oceans Project
The Ocean Project has grown from a founding handful of aquariums and other organizations in 1997 into the world’s most extensive network for advancing conservation...
The Ocean Project has grown from a founding handful of aquariums and other organizations in 1997 into the world’s most extensive network for advancing conservation and solutions-oriented action for our ocean.
Event Details
Global Wind Day is a worldwide event that occurs annually on 15 June. It is a day for discovering wind, its power and the possibilities it holds to reshape our
Event Details
Global Wind Day is a worldwide event that occurs annually on 15 June. It is a day for discovering wind, its power and the possibilities it holds to reshape our energy systems, decarbonise our economies and boost jobs and growth.
Occurs annually on June 15
Organizer
Global Wind Energy Council
The Global Wind Energy Council is the international trade association for the wind power industry. Our mission is to ensure that wind power establishes itself...
The Global Wind Energy Council is the international trade association for the wind power industry. Our mission is to ensure that wind power establishes itself as the answer to today’s energy challenges, providing substantial environmental and economic benefits.
July
Event Details
Global Tiger Day is celebrated every year on July 29th as a way to raise awareness about this magnificent but endangered big cat. The day was founded in 2010, when
Event Details
Global Tiger Day is celebrated every year on July 29th as a way to raise awareness about this magnificent but endangered big cat. The day was founded in 2010, when the 13 tiger range countries came together to create Tx2 – the global goal to double the number of wild tigers by the year 2022.
Organizer
WWF
The world’s leading conservation organization, WWF works in 100 countries and is supported by more than one million members in the United States and close...
The world’s leading conservation organization, WWF works in 100 countries and is supported by more than one million members in the United States and close to five million globally. WWF's unique way of working combines global reach with a foundation in science, involves action at every level from local to global, and ensures the delivery of innovative solutions that meet the needs of both people and nature.
August
No Events
September
21sepAll DayInternational Day of Peace
Event Details
The International Day of Peace (“Peace Day”) is observed around the world each year on 21 September. Established in 1981 by unanimous United Nations resolution, Peace Day provides a globally
Event Details
The International Day of Peace (“Peace Day”) is observed around the world each year on 21 September. Established in 1981 by unanimous United Nations resolution, Peace Day provides a globally shared date for all humanity to commit to Peace above all differences and to contribute to building a Culture of Peace.
Organizer
United Nations
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the...
The United Nations is an international organization founded in 1945. It is currently made up of 193 Member States. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter.
October
23octAll DayInternational Snow Leopard Day
Event Details
The snow leopard species faces the threat of extinction despite both its ecological importance and spiritual significance to indigenous communities. Recognizing it would take more than individual efforts to conserve
Event Details
The snow leopard species faces the threat of extinction despite both its ecological importance and spiritual significance to indigenous communities. Recognizing it would take more than individual efforts to conserve snow leopards, at the first Global Snow Leopard and Ecosystem Protection Forum held in October 2013, all 12 snow leopard range countries endorsed the Bishkek Declaration. They pledged their “commitment to present and future generations…to protect and recover snow leopard populations and their fragile habitats for all people to enjoy.” A year later and annually thereafter on October 23, International Snow Leopard Day has been held in order to commemorate the anniversary of the Bishkek Declaration and to create awareness about the snow leopard.
November
15novAll DayAmerica Recycles Day
Event Details
America Recycles Day® (ARD), a Keep America Beautiful® national initiative, is the only nationally-recognized day dedicated to promoting and celebrating recycling in the United States. Each year, on and in
Event Details
America Recycles Day® (ARD), a Keep America Beautiful® national initiative, is the only nationally-recognized day dedicated to promoting and celebrating recycling in the United States. Each year, on and in the weeks leading into Nov. 15, thousands of communities across the country participate by promoting environmental citizenship and taking action to increase and improve recycling in America.
Occurs every Nov 15
#BeRecycled
Organizer
Keep America Beautiful
A leading national nonprofit, Keep America Beautiful inspires and educates people to take action every day to improve and beautify their community environment. We envision...
A leading national nonprofit, Keep America Beautiful inspires and educates people to take action every day to improve and beautify their community environment. We envision a country in which every community is a clean, green, and beautiful place to live. Established in 1953, Keep America Beautiful provides the expertise, programs and resources to help people End Littering, Improve Recycling, and Beautify America’s Communities.
29novAll DayInternational Jaguar Day
Event Details
With their majestic, spotted coats and their silent, silky movements, jaguars are the iconic big cat of the Americas. International Jaguar Day, November 29, highlights the pressing need to conserve
Event Details
With their majestic, spotted coats and their silent, silky movements, jaguars are the iconic big cat of the Americas. International Jaguar Day, November 29, highlights the pressing need to conserve them. Jaguar North America, LLC is collaborating with WCS to raise awareness and support.
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