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!
April ’21
3 April: World Aquatic Animal Day
5 to 11 April: Community Garden Week (no link)
5 to 12 April: International Dark Sky Week
7 April: World Health Day
7 April: International Beaver Day
15 April: Microvolunteering Day
15 April: WCEF+Climate (World Circular Economy Forum)
17 April: Bat Appreciation Day (no link)
22 April: International Mother Earth Day or Earth Day (international)
25 April: World Malaria Day
25 April: World Penguin Day (no link)
26 April to 2 May: National Gardening Week (UK)
27 April: World Tapir Day
28 April: Stop Food Waste Day (international) (no link)
29 April: release of “How to Love Animals in a Human-Shaped World” by Henry Mance (note this is an affiliate link through bookshop.org to support local bookshops)
30 April: Arbor Day (US)
May ’21
All month: No Mow May (northern hemisphere)
All month: National Walking Month (UK)
All month: National Clean Air Month (US)
until 2 May: National Gardening Week (UK)
1 May: Green Up Day (Vermont, US)
2 May: World Tuna Day
3 to 10 May: International Compost Awareness Week (international)
3 May: Hedgehog Awareness Week (UK)
3 May: International Leopard Day
3 May: International Dawn Chorus Day
3 May: Wild Koala Day (?)
4 May: release of “Finding the Mother Tree: Discovering the Wisdom of the Forest” by Suzanne Simard (note, as part of my pledge to support local business I’m not including a link to Amazon. Please buy this through your local bookseller where you can)
4 May: Greenery Day (Japan)
8 to 16 May: National Public Gardens Week (US)
8 May: World Donkey Day
8 May: World Migratory Bird Day (US and Canada – see also October)
9 May: World Fairtrade Day
11 to 14 May: Water Saving Week (UK)
13 May: #DoNothingForTheClimate Day (international)
18 May: Walk to School Week (international)
20 May: World Bee Day (international)
21 May (third Friday in May): Endangered Species Day (international)
21 May (third Friday in May): Bike to Work Day
22 May: International Day for Biological Diversity (international)
23 to 31 May: Every Flower Counts (?)
23 to 30 May: National Children’s Gardening Week (?)
23 May: World Turtle Day (international)
24 May: European Day of Parks
28 May: The Great British Spring Clean
27 May: World Otter Day
31 May: World Parrot Day
31 May to 6 June: Garden Wildlife Week (UK)
June ’21
until 6 June: Garden Wildlife Week (UK)
All month: 30 Days Wild (UK)
1 to 6 June: National Growing for Wellbeing Week (UK)
1 June: World Reef Day
3 June: release of “Go Big: How To Fix Our World” by Ed Miliband (note, as part of my pledge to support local business I’m not including a link to Amazon. Please buy this through your local bookseller where you can)
5 June: World Environment Day
6 to 13 June: Bike Week (?)
8 June: World Ocean’s Day
9 June: Coral Triangle Day
11-13 June: G7 Summit at Carbis Bay, Cornwall, UK
11 June: International Lynx day
12 June: National Cougar Day (?)
15 June: Global Wind Day
16 June: World Sea Turtle day
17 June: World Day to Combat Desertification and Drought
17 June: Plastic Free Beauty Day (?)
17 June: World Croc Day
18 June: Sustainable Gastronomy Day (?)
19 June: National Refill Day (UK)
20 June: International Clean Air Day (international)
21 June: World Giraffe Day
22 June: World Camel Day
22 June: World Rainforest Day
July ’21
All month: Plastic Free July (international)
1 to 6 July: Clean Beaches Week (US)
3 July: International Plastic Bag Free Day (international)
10 July: Don’t Step on a Bee Day (?)
11 July: World Population Day (international)
11 July: Shark Awareness Day (?)
14 July: World Chimpanzee Day
14 July: World Orca Day
12 to 19 July: Love Parks Week (UK)
25 July to 8 August: National Marine Week (UK)
28 Jul: World Nature Conservation Day (international)
29 July: International Tiger Day (international)
August ’21
Until 8 August: National Marine Week (UK)
4 August: International Clouded Leopard Day
9 August: International Day of the World’s Indigenous People (international)
10 to 15 August: National Allotments Week (UK)
10 August: World Lion Day
12 August: World Elephant Day
12 August: World Hirola Day
13 August: International wolf Day
15 August: National Honey Bee Day (?)
19 August: World Orangutan Day
26 August: World African Wild Dog Day
30 August: International Whale Shark Day
September ’21
All month: Organic September (UK)
1 September: Japan Dolphin Day
4 September (first Saturday of September): International Vulture Awareness Day
5 September: Amazon Rainforest Day (?)
Third week in September: National Indoor Plant Week (US)
16 September: International Day for the Preservation of the Ozone Layer
17 September (third Friday in Septmeber): PARK(ing) Day (?)
18 September (third aturday in September): World CleanUp Day and National CleanUp Day
18 September (third Saturday in September): International Red Panda Day
18 September: World Water Monitoring Day
18 to 20 September: Great British Beach Clean (UK)
21 September: Zero Emissions Day (?)
22 September: World Car Free Day (international)
22 September: World Rhino Day
23 September to 22 October: Seed Gathering Season (UK)
23 September to 30 October: Recycle Week (?)
25 September: FSC Friday or Forest Stewardship Council Friday (?)
26 September: World Environmental Health Day
26 September: World Cassowary Day
26 September (last Sunday of September): World Rivers Day
October ’21
All month: Unblocktober (?)
All month: International Walk to School Month (international)
until 22 October: Seed Gathering Season (UK)
1 October: World Vegetarian Day (international)
2 October: World Farm Animals Day
4 October (first Monday in October): World Habitat Day (international)
4 October: World Animal Day (international)
4 October: No Disposable Cup Day (UK)
6 October (first Wednesday in October): Energy Efficiency Day (?)
6 October:National Badger Day (UK)
8 October: National Clean Air Day (UK) and International Clean Air Day
9 October: World Migratory Bird Day (Central and Southern America, Caribbean – see also May)
13 October: International Day for Natural Disaster Reduction
14 October: International E-Waste Day
16 October: World Food Day (international)
17 October: International Day for the Eradication of Poverty (international)
18 October: World Okapi Day
20 October: International Sloth Day
21 October: Reptile Awareness Day (?)
22 October (fourth Wednesday in October): Sustainability Day (?)
22 October: International Wombat Day
23 October: International Snow Leopard Day
24 October: Freshwater Dolphin Day
24 October: International Gibbon Day
24 October: International Day of Climate Action
24 October (last Friday in October): World Lemur Day
November ’21
All month: World Vegan Month (international)
November to January: Big Energy Saving Winter (UK) replaces Big Energy Saving Week
1 to 12 November: COP 26 (26th UN Climate Change Conference of the Parties) in Glasgow, Scotland
1 November: World Vegan Day
6 November: International Day for Preventing the Exploitation of the Environment in War and Armed Conflict
6 November (First Saturday in November): National Bison Day
15 November: America Recycles Day
21 November: World Fisheries Day
29 November: International Jaguar Day
December ’21
November to January: Big Energy Saving Winter (UK) replaces Big Energy Saving Week
4 December: International Cheetah Day
5 December: World Soil Day (international)
10 December: International Animal Rights Day (international)
11 December: International Mountain Day (international)
14 December: Monkey Day (?)
January ’22
All month:
- Veganuary (UK) – see also World Vegan Month and World Vegan Day, both in November
- Big Energy Saving Winter (UK) replaces Big Energy Saving Week
- Walk Your Dog Month (international)
Until 5 January: Walk in Winter (UK) replaces the Festival of Winter Walks – see also National Walking Month in May
5 January: National Bird Day (US) – see also World Migratory Bird Day in May and October
5 January to 22 February: Big Schools’ Birdwatch (UK)
11 to 17 January: Houseplant Week (UK) – see also National Indoor Plant Week in September
21 January: Squirrel Appreciation Day (international) and Red Squirrel Appreciation Day (UK)
25 to 29 January: The Davos Agenda (online conference by World Economic Forum)
31 January: International Zebra Day (international)
February ’22
until 22 February: Big Schools’ Birdwatch (UK)
1 to 6 February: Dutch Circular Economy Week
2 February: World Wetlands Day
14 February: World Bonobo Day
15 February: World Hippopotamus Day
17 February: Random Acts of Kindness Day (international)
20 February (third Saturday in February): World Pangolin Day
21 February: World Whale Day
22 February to 7 March: Fairtrade Fortnight (international)
27 February: International Polar Bear Day
March ’22
Until 7 March: Fairtrade Fortnight (international)
1 to 7 March: Food Waste Action Week (UK)
3 March: UN World Wildlife Day
8 March: International Women’s Day
14 March: International Day of Action for Rivers (see also World Rivers Day in September)
15 March: Buzzards Day (no link)
16 March: Panda Day (no link) (see also International Red Panda Day in September)
18 March: Global Recycling Day (see also Recycle Week in October and America Recycles Day in November)
20 March: World Sparrow Day
20 March: World Frog Day (no link)
21 March: International Day of Forests and World Wood Day and World Planting Day (no link) (see also World Rainforest Day in June)
22 March: World Water Day
22 March: International Seal Day
23 March: World Bear Day
23 March: World Meteorological Day
27 March: Earth Hour (see also Earth Day in April)
31 March (last Wednesday in March): Manatee Appreciation Day (no link)
Previous summaries:
Sources and further information:
https://www.awarenessdays.com/
https://greenecofriend.co.uk/environmental-awareness-calendar/
