As ecology is the branch of science that deals with relationship and interaction, in a spiritual sense it signifies the action between the spiritual and physical realms.
Psychological / emotional perspective: As the earth becomes more threatened, issues of climate change, conservation and preservation will become part of our everyday concerns and, therefore, part of our dreams. Any of these issues – particularly climate change – can represent a change in emotional focus.
Material aspects: Dreams to do with ecological concerns usually focus on the efficient use of resources and it is this meaning which will often arise in dreams whether those resources are personal, work-related or of more global impact. Also consult the entries for climate, conservation and earth / earthquake.