1st - start of Meteorological Autumn
1st - start of 'Season of Creation' or Creationtide, runs until 4th October
1st - International Primate Day
1st - 30th, Soil Association's 'Organic September'
1st - 30th, Oxfam's 'Second-hand September'
5th - International Day of Charity
5th - 7th - National Bat Conference, Durham
7th - Full 'Harvest' Moon
12th - World Dolphin Day
16th - International Day for the Preservation of the Ozone layer
17th - Super Harvest Moon (supermoon)
19th - 28th MSC's Great British Beach Clean
20th - 26th Forest Stewardship Council 'Forest Week'
22nd - Autumn Equinox - start of astronomical autumn
22nd -World Rhino Day
22nd - (5th Oct) Fairtrade Fortnight
23rd - 29th Sea Otter awareness week
24th - World Gorilla Day
28th - World Peace Day
29th - Michaelmas Day