Christopher Joyce

Houston, the nation's fourth largest city, is planning to remake itself into a more flood-proof metropolis after Hurricane Harvey hit the region hard. But Texas still doesn't have the money it wants to do that, let alone detailed plans on how to spend it. Some Texans simply aren't waiting; they're forging ahead on their own.

Just because a city is efficient at moving traffic around doesn't mean it's "traffic resilient." Scientists examined 40 cities and ranked them in terms of how they handle disruptions.

The extreme warming trend continues, and scientists fear that floating sea ice will be gone by midcentury. That will have extraordinary effects closer to home.

Scientists say they see the fingerprint of climate change in these storms, but it's too soon to say whether this is a new normal.

Identifying where ice melts can help cities in planning for a future with elevated sea levels. In New York City, the sea level would be affected more by melting ice in northern Greenland than Canada.

Hurricane Harvey's deluge left some homeowners and politicians wondering whether the whole system for predicting floods is any good. Scientists are hoping better data can lead to better flood maps.

Delegates to the annual international climate meeting held by the U.N. are struggling to forge a unified approach to slowing climate change. Meanwhile, emissions of greenhouse gases keep rising.

As researchers and engineers analyze the aftermath of Hurricane Harvey, it's becoming clear that Houston's runaway development had a big role to play in flooding.

The U.S. government's most comprehensive climate report to date is at odds with the statements made by President Trump and his Cabinet.

With the help of federal flood insurance, many homeowners will rebuild after disasters. Some properties already have flooded many times. It'd be cheaper to buy owners out, but that's not happening.

The problem is that just to the west, a huge slab of the Earth's crust called the Cocos Plate is grinding relentlessly toward North America. And it's running under another slab to the north.

Mexico City has the misfortune of being situated where two massive tectonic plates grind into each other. The geological situation is made worse by the kind of soil the city is built on.

As Harvey continues to dump damaging rain on the south, some researchers are looking at new ways to quantify the power of a big storm.

President Trump pledged to rebuild Houston and Texas bigger and better than ever. However, he has also proposed eliminating federal flood mapping and the federal government's top disaster agency.

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.

Forty years ago, NASA launched two Voyager spacecraft into deep space. Onboard both were gold discs with music, greetings and sounds from Earth — a message to aliens. Ann Druyan, the creative director of the project, talks about how they decided what message to put in the interstellar bottle.

A comprehensive government report on climate change has leaked to the public. The report clearly states that humans are changing the climate, and the consequences could be serious. Those views are at odds with statements by many in the Trump administration.

Federal maps help determine who on the coast must buy flood insurance, but many don't include the latest data. Maryland is now making its own flood maps, so homeowners can see if they're at risk.

A researcher tallied how much has been manufactured since plastic's invention: "Eight point three billion metric tons of plastics produced so far. That's just really a staggering amount."

New research suggests the biggest animals run out of fuel for their fast-twitch muscles before they reach the maximum speed their bodies could achieve. Animals like cheetahs are born to run fast.