This video gives an overview ofthe “New Urbanism” movement that aims to counter and reverse urban sprawl. Not just because sprawl is ugly but because analysing the reasons for sprawl, and what happens if you reverse it, will give a very good grounding in sustainable thinking and future sustainable development.Oddly enough, the solutions look very much like “old urbanism”, AKA traditional community design.
Ignore the “what’s the biggest threat” bit at the beginning – it’s a bit overblown. Concentrate on the bits where they slot many words into a gap in the sentences to make a “picture” paint a thousand words.