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 (dates tbc) National Bat Conference, Durham
12th - World Dolphin Day
16th - International Day for the Preservation of the Ozone layer
18th - 27th MSC's Great British Beach Clean
21st - 27th Forest Stewardship Council 'Forest Week'
21st - 4th Oct Fairtrade Fortnight
22nd - Autumn Equinox - start of astronomical autumn
22nd -World Rhino Day
23rd - 29th Sea Otter awareness week
24th - World Gorilla Day
26th - Full 'Harvest' Moon
28th - World Peace Day
29th - Michaelmas Day