Sam Brody, a professor at Texas A&M at Galveston, talks with Ailsa Chang about how Houston area levees, reservoirs, dams and bayous have been holding up during the storm.
The president said he waited to visit until he could do so "without causing disruption." He sidestepped Houston and instead stopped in Corpus Christi, where Harvey made landfall, and then in Austin.
The blood thinner warfarin, which prevents blood clots, owes its existence to some cows who got very sick after eating spoiled hay — and to a chemist who spent years trying to figure out why.
The dead sharks, mostly endangered hammerheads, were part of a 300-ton haul of fish found on a Chinese boat off the Galápagos Islands. An Ecuadorean judge fined and jailed the crew up to four years.
An unusual bank will open Tuesday in Kazakhstan. The deposits will be nuclear fuel, low-enriched uranium. The customers withdrawing low-enriched uranium will be nations which lack enrichment facilities. The idea is to convince such nations not to build their own. Warren Buffett is among the bank's founders.
The U.S.-based environmental activist group says it will not send ships because Japan has improved technology to avoid the vessels and has toughened its anti-terrorism laws.
The great hope of urban advocates is to democratize data, allowing residents to see more clearly how a neighborhood is changing — but knowledge of those changes may accelerate them, says Adam Frank.
Hurricane Harvey bears the marks of climate change. Warmer waters in the Gulf of Mexico and rising sea levels make rain heavy storms like Harvey more likely in the future.