In the increasingly dry Southwest, drought and climate change pose a challenge for developers, who need to find creative ways to provide water supply to new communities.
Repeated shocks from hurricanes, fires and floods are pushing some rural communities, already struggling economically, to the brink of financial collapse.
The administration plans to release $1.3 billion that was meant to help Puerto Rico rebuild after Hurricane Maria in 2017, and will remove restrictions on another $4.9 billion.
Using tax dollars to move whole communities out of flood zones, an idea long dismissed as radical, is swiftly becoming policy, marking a new and more disruptive phase of climate change.