The third section of my book is going to talk about the role of hope in climate action - how do people keep moving when...
/waves hand at the situation.
The big takeaway, for me, is that hope is not a prerequisite for action in LoTR. It is a reward.
Sam gives up hope on the slopes of Orodruin, but resolves to carry on regardless. Faramir fights even though "it is long since we had any hope". Gandalf gambles everything on a what is admittedly "a fool's hope".
They act, even so.