Från The Guardian.
1. Greybeard by Brian W Aldiss
PD James used a similar plot which she corrupted with bad prose and poor thinking. An early eco-freak, Aldiss gives us a world fundamentally destroyed by consumerism. This is the original Grumpy-Old-People-in-a-childless-world parable. Humane, clever, lyrical, it’s far and away the best.