Creationtide runs from 1 September to 4 October. For Christians, the principle of sustainability is an old idea. The roots of sustainability are anchored in the Holy Bible but in many cases forgotten in daily life. The internet platform “Sustainable Preaching” is a website with a collection of sermon suggestions, based around the lectionary.
If you feel passionate about climate change and want to continue to inspire people to care for the environment through the whole year, not just during Creationtide, then this might be a good place to start.