Cumbria Action for Sustainability Cumbria Action for Sustainability (CAfS) is an award-winning climate charity with a vision of a zero carbon Cumbria which is socially, environmentally and economically beneficial for all. We aim to achieve this by promoting and facilitating low carbon living and its benefits - inspiring and supporting individuals, communities, and organisations across Cumbria and beyond to decarbonise their lives and businesses by 2037 or sooner.