Grief is a natural response to the loss of something cherished – a loved one, a place, a memory, an icon, a way of life.
Amazingly, the loss of capacity for rational thought is not something that can be grieved. Good to know that.
I would have expected a whole lot of other possibilities than "grief" - which is essentially the process of feeling sorrowful and then getting back to life without the sorrow being a major interference.
For instance, at the New South Wales Coastal Conference in 2012, one local government participant told us they had found that the community accepted and believed that climate change was happening but added that “when we went to talk to them about possible relocation in the future, they got really angry”.
Digging a little deeper, "relocation" meant going away without any planning about how the residents would assimilate to their new location or how that new location would provide the jobs necessary to support the newly relocated. OTOH, the little flood-prone town of Grundy, Virginia picked it's collective ass up and moved to higher ground on the other side of the river while addressing many of those concerns.
http://appvoices.org/2007/04/25/2911/ The folks in Grundy were grieving the regular-as-clockwork destruction of their town and the impending loss of both government and private insurance to rebuild just to do it over again. While a goodly number were not overjoyed at the prospects of the move, I don't recall any of them being "angry" at the prospect.
stay safe.