This is the full 12 month sustainability calendar, showing all sustainability and environment observances, holidays and days of action. I’ll keep this page current, but if you’re aware of any date changes or postponements, let me know! Are you aware of a day that I’ve missed? Let me know!
May ’22
All month:
- National Clean Air Month in the US
- National Walking Month in the UK
- No Mow May in the UK
Sunday, 1 to Saturday, 7 May:
- Hedgehog Awareness Week in the UK
- International Compost Awareness Week
Sunday, 1 May: Dawn Chorus Day (first Sunday in May)
Monday, 2 to Sunday, 8 May: National Gardening Week in the UK
Monday, 2 May: World Tuna Day
Tuesday, 3 May:
- International Leopard Day (no link)
- Wild Koala Day in Australia
Friday, 6 to Sunday, 15 May: Go Public Gardens Days in the US
Saturday, 7 May: Green Up Day in Vermont, US (first Saturday in May)
Sunday, 8 May:
- World Donkey Day (no link)
- World Migratory Bird Day in the US and Canada
Saturday, 14 May: World Fairtrade Day
see also Fairtrade Fortnight in February
Monday, 16 to Friday, 20 May: Walk to School Week in the UK
Friday, 20 May:
- Bike to Work Day in the US
see also Cycle to Work Day in October - Endangered Species Day (international, third Friday in May)
- World Bee Day
Sunday, 22 May: International Day for Biological Diversity
Monday, 23 May: World Turtle Day
Tuesday, 24 May: European Day of Parks
Wednesday, 25 May: World Otter Day
Saturday, 28 May to Sunday, 5 June: National Children’s Gardening Week in the UK
Tuesday, 31 May: World Parrot Day
To be confirmed: Every Flower Counts in the UK
June ’22 (dates to be confirmed)
All month: 30 Days Wild in the UK
Until Sunday, 5 June: National Children’s Gardening Week in the UK
Wednesday, 1 to Tuesday, 7 June: Volunteers Week in the UK
Sunday, 5 June: World Environment Day
Monday, 6 to Friday, 10 June: Marine Environment Protection Committee 78 (IMO)
Monday, 6 to Sunday, 12 June:
- Bike Week in the UK
- Garden Wildlife Week in the UK
- National Growing for Wellbeing Week in the UK
Wednesday, 8 June: World Ocean Day
To be confirmed World Reef Day
Coral Triangle Day (south-east Asia) (theme: “Driving Blue Recovery for A Sustainable Coral Triangle”)
> Official site
International Lynx Day
National Cougar Day
Global Wind Day
World Sea Turtle day
> Official site
World Refill Day
> Official site
World Day to Combat Desertification and Drought (Theme: “Restoration. Land. Recovery. We build back better with healthy land”)
> Official Site
Clean Air Day in the UK
> Official site
Plastic-Free Beauty Day in the UK
World Croc Day
Sustainable Gastronomy Day
> Official site
Summer solstice
World Giraffe Day
> Official site
World Camel Day
World Rainforest Day
> Official site
World Sand Dunes Day
July 22 (dates to be confirmed)
All month: Plastic Free July (international)
> Official site
Clean Beaches Week in the US
> Official site
International Plastic Bag Free Day
National Don’t Step on a Bee Day in the UK
World Population Day
> Official site
Shark Awareness Day (international)
> Official site
World Chimpanzee Day
> Official site
World Orca Day
> Official site
World Snake Day
Love Parks Week in the UK
> Official site
National Marine Week in the UK
World Nature Conservation Day
International Tiger Day
> Official site
August ’22 (dates to be confirmed)
International Clouded Leopard Day
International Day of the World’s Indigenous People
National Allotments Week (UK)
World Lion Day
World Elephant Day
World Hirola Day
International wolf Day
National Honey Bee Day (?)
World Orangutan Day
World African Wild Dog Day
International Whale Shark Day
September ‘22 (dates to be confirmed)
All month: Organic September in the UK
Japan Dolphins Day, to raise awareness of and protest against the Taiji dolphin hunt
(first Saturday of September): International Vulture Awareness Day
Amazon Day (International),
International Day for the Preservation of the Ozone Layer
(third Friday in September): PARK(ing) Day (International)
The Great British Beach Clean¹
(third Saturday in September) World CleanUp Day, an international day of litter picking
(third Saturday in September) International Red Panda Day
World Water Monitoring Day¹, to raise awareness about water pollution
(Third week in September): National Indoor Plant Week in the US.
Recycle Week in the UK
Zero Emissions Day (international)
FSC Friday (Forest Stewardship Council)
World Environmental Health Day¹
(Fourth Sunday in September) World Rivers Day
Vernal Equinox
October ’22 (dates to be confirmed)
All month: Unblocktober (?)
All month: International Walk to School Month (international)
World Vegetarian Day (international)
World Farm Animals Day
(first Monday in October): World Habitat Day (international)
World Animal Day (international)
No Disposable Cup Day (UK)
(first Wednesday in October): Energy Efficiency Day (?)
National Badger Day (UK)
National Clean Air Day (UK) and International Clean Air Day
World Migratory Bird Day (Central and Southern America, Caribbean – see also May)
International Day for Natural Disaster Reduction
International E-Waste Day
World Food Day
International Day for the Eradication of Poverty
World Okapi Day
International Sloth Day
Reptile Awareness Day (?)
(fourth Wednesday in October): Sustainability Day (?)
International Wombat Day
International Snow Leopard Day
Freshwater Dolphin Day
International Gibbon Day
International Day of Climate Action
(last Friday in October): World Lemur Day
November ’22 (dates to be confirmed)
All month: World Vegan Month (international)
World Vegan Day
International Day for Preventing the Exploitation of the Environment in War and Armed Conflict
(First Saturday in November): National Bison Day
America Recycles Day
World Fisheries Day
International Jaguar Day
December ’22 (dates to be confirmed)
International Cheetah Day
World Soil Day (international)
International Animal Rights Day (international)
International Mountain Day
Monkey Day
Winter Solstice
January ’23 (dates to be confirmed)
All month:
- Veganuary (UK) – see also World Vegan Month and World Vegan Day, both in November
- Big Energy Saving Winter (UK)
- Walk Your Dog Month (international)
National Bird Day (US) – see also World Migratory Bird Day in May and October
Houseplant Week (UK) – see also National Indoor Plant Week in September
Martin Luther King Jr. Day in the US.
Penguin Awareness Day (International)
Squirrel Appreciation Day (international) and Red Squirrel Day (UK)
World Environmental Education Day
International Zebra Day
February ’23 (dates to be confirmed)
Student Volunteering Week in the UK
World Hippopotamus Day
Random Acts of Kindness Day (international)
(third Saturday in February): World Pangolin Day
World Whale Day
Fairtrade Fortnight in the UK
International Mother Language Day
March ’23 (dates to be confirmed)
Fifth session of the United Nations Environment Assembly
International Day of Action for Rivers (see also World Rivers Day in September)
Buzzards Day (no link)
Panda Day (no link) (see also International Red Panda Day in September)
Global Recycling Day (see also Recycle Week in October and America Recycles Day in November)
World Frog Day (no link)
International Day of Forests and World Wood Day and World Planting Day (no link) (see also World Rainforest Day in June)
Earth Hour (see also Earth Day in April)
(last Wednesday in March): Manatee Appreciation Day (no link)
Great British Spring Clean
Spring equinox
April ’23 (dates to be confirmed)
World Aquatic Animal Day
see also World Ocean Day in June, National Marine Week (UK) in July/August
Community Garden Week
see also National Gardening Week (UK) and Go Public Gardens Days (US) in May, National Children’s Gardening Week (UK) and Garden Wildlife Week (UK) in May/June, and National Growing for Wellbeing Week (UK) in June
Microvolunteering Day
See also Student Volunteering Week (UK) in February
Bat Appreciation Day (no link)
Earth Day
See also Earth Hour in March
World Penguin Day (no link)
See also Penguin Appreciation Day in January
Stop Food Waste Day
See also Food Waste Action Week (UK) in March and World Food Day in October
Arbor Day (US)
See also International Day of Forests in March, World Rainforest Day in June, and FSC Friday in September.
Previous summaries:
- September ’21
- No update in August ’21
- July ’21
- June ’21
- May ’21
- April ’21
- March ’21
- February ’21
- January ’21
Sources and further information:
https://www.awarenessdays.com/
https://greenecofriend.co.uk/environmental-awareness-calendar/
Notepaths 