The Season of Creation originated in Australia and is now celebrated around the world for four weeks in September, culminating in the Francis of Assisi feast day in early October. The original website is http://seasonofcreation.com, and includes liturgies, sermon suggestions, Bible studies, ideas for children's talks and more for each of the weeks. There is also a new Season of Creation preaching commentary.
Uniting Earth has produced a collection of video resources to go with the themes, together with short liturgies. Many of these videos and liturgies were produced for and in collaboration with Project Reconnect. Videos for 2016 are now available.
The Uniting Church in WA also produces "Sustainable September" resources each year.