Speed climbing is the fastest sport at the Paris Games. Which is a good thing, since it inflicts a catalog of stomach-churning injuries, including fingernails that get torn clean out of their beds.
New York City invested $7.6 billion on flood-proofing its subway system—yet it still floods. Now, it plans to spend another $1 billion on a raft of new measures. Here’s what other cities might learn from their efforts.
