Heat is the deadliest weather hazard in the U.S. and many places around the world, and it's only getting worse. The most deadly heat waves so far have been dry heat waves. But a new threat is rising: humid heat waves, aka wet-bulb events.

Some of the fastest-growing metros in the U.S. are also the riskiest when it comes to climate change. And we've long puzzled: WHY? In this episode, we explore how the Great Recession, liberal housing policy and well-intentioned community decision-making have fueled our nationwide housing crisis and helped drive people to move into harm's way.

What really causes Earth's climate to change? Some people point to natural cycles, like solar activity or orbital changes, to explain today's warming. And they're not entirely wrong, but they're missing the full picture. In this episode of Weathered, we break down ice ages, CO2 feedback loops, and why today's climate change is different from anything in Earth's past.

New evidence suggests that West Antarctica - which holds around 5 METERS of sea level rise - is melting a lot faster than scientists once thought.

After a viral study inspired a campaign to plant 20 million trees, we went to see if they survived. In this episode of Weathered, we get into the surprising origins of the trillion tree campaign, how it nearly ended the careers of the scientists behind it, and what actually works when it comes to storing carbon and tackling climate change. Spoiler: it's not just planting trees.

A mysterious patch in the Pacific Ocean is defying all climate models - it is inexplicably cooling while the rest of the world is warming. Stretching off the west coast of Ecuador, this "cold tongue" challenges what we know about fundamental ocean and atmospheric currents, and has big implications for weather systems throughout the world.

To explain the breakdown of conditions that led to this extreme weather event, WEATHERED: INSIDE THE LA FIRESTORM interviews survivors, scientists, first responders and public officials, including former U.S. Fire Administrator Dr. Lori Moore-Merril, former LA County Fire Chief Derek Alkonis, retired U.S. Forest Service Fire Scientist Jack Cohen, Ph.D., and LA County Fire Chief Anthony Marro. 

Throughout the special, May also helps audiences understand the history and science behind urban firestorms in the U.S. From record-breaking heat and prolonged drought to the challenges of firefighting in extreme winds, she learns how a perfect storm of conditions turned these LA fires into a historic catastrophe. How do we protect homes, lives and communities in an emerging era of large wildfires? What role does the community have in mitigating future disasters? May gets to the bottom of these questions and also takes audiences to the Institute for Business and Home Safety Lab in South Carolina, where researchers simulate urban fire conditions to find ways to make communities more resilient.

For the last 50 years, Americans have flocked to the warm, sunny South. But, as climate change makes extreme heat, hurricanes, wildfire and flooding worse, will that trend ever STOP? Well, some regions might just be showing signs of a reversal, and they hold lessons for what other areas might expect as the world continues to warm.

There is a mysterious cold blob in the North Atlantic that could be a warning sign that the largest heat transfer system on the planet, the AMOC, is on the brink of collapse. But it turns out that the AMOC's collapse is a highly debated topic among scientists – climate models are inconsistent and there isn't enough observational data to determine a trend. So, perhaps the answer to understand a pos

Arctic sea ice is melting at record levels throwing global weather into chaos and contributing to extreme warming. Stay tuned as we explore a promising new technology that has high hopes of cooling the Arctic, just when we need it the most.