Let me find the book. Wait there.
My Dad was obsessed with Avatar for a while, he went to see it at the cinema several times. He was also pulling his hair out over people saying stuff like "I wish I lived on a planet like that", he couldn't believe that they couldn't see that they do.
Did you read that thing in the Guardian about the guy letting a really tall tree live. He marked it not for destruction and so it remained while the rest of the patch was cleared. It was a kind of glimmer of hope in darkness but to me the overall story was still depressing.
One of the reasons I called that book vegetable empire is from the same awareness slothrop has, of the very vivid aliveness of plants. Something switched in me as a teenager and they stopped being objects and became creatures.