It might be more effective to simply cut the trees down
with the protesters still in them. It doesn't make sense for anybody to risk injury by climbing up after them.
Besides, wouldn't it be more satisfying to the protesters' urge for martyrdom if they died along with their precious plantlife?
Can someone please tell me how these people can survive in a tree for months? Do they really not come down at night? What about supplies, not to mention how they handle #1 and #2!