Thousands of Australians were flooded out of their homes by global heating. Many have been unable to find anywhere to live except in their homes, which have been condemned. Many are condemned because of mold.

The policy of condemning those houses is wise. Living for weeks in a moldy building may not bother you just then, but it can cause you a long-term illness that could kill you. But that policy must be accompanied by making sure there is enough housing for everyone. It is no use to tell people to sleep outside.

New South Wales must throw up some housing immediately. Then it must build a lot of dense housing in places near train lines that won't be flooded -- at least, not in the next decade or two.