I think it's pointless asking questions like "Will humanity survive?" It's purely up to people - if they want to, they can, if they don't want to, they won't.

Permaculture principles focus on thoughtful designs for small-scale intensive systems which are labor efficient and which use biological resources instead of fossil fuels. Designs stress ecological connections and closed energy and material loops. The core of permaculture is design and the working relationships and connections between all things.

The value of land must, in the future, be assessed on its yield of potable water. Those property-owners with a constant source of pure water already have an economically-valuable "product" from their land, and need look no further for a source of income.

If you only do one thing, collect rainwater.

"Should we tamper with nature?" is no longer a question - we've tampered with nature on the whole face of the Earth.

Use all the skills you have in relation to others - and that way we can do anything.

Anyone who ever studied mankind by listening to them was self-deluded. The first thing they should have done was to answer the question, "Can they report to you correctly on their behavior?" And the answer is, "No, the poor bastards cannot."