Rebecca Hersher

As states issue evacuation orders ahead of Hurricane Dorian's arrival, many elderly people have stayed behind. That group of people can have specific challenges when it comes to evacuating.

Not all bullets are created equal. This video compares the damage caused by different kinds of rounds.

The sea level is rising more in some coastal places than in others. But why is that? It has to do with wind, currents, glaciers and even the last Ice Age.

Scientists need to track the history of sea temperatures precisely to model climate change. A newly discovered clue in measurements taken by sailors in the 1930s could have far-reaching implications.

The way we produce food and manage land must change radically if humans hope to avoid catastrophic global temperature rise, according to a new report by the United Nations panel on climate change.

The central U.S. just experienced the most widespread river flooding ever recorded there. Flood defenses in major cities largely performed well, but many smaller communities were simply overwhelmed.

The National Weather Service warns a widespread and dangerous heat wave is building in the central and eastern U.S. How should people think about these kinds of events in the era of climate change?

The top scientific integrity official from the Environmental Protection Agency was barred from attending a Congressional hearing on scientific integrity on Wednesday.

The shipping industry is starting to move away from pollutant-intensive heavy fuel oil. Scientists and private companies are betting on a clean replacement technology: hydrogen fuel cells.

When Hurricane Barry came ashore over the weekend, it did not do as much damage as feared, But it tested a number of systems and hurricane protection entities put in place after previous storms.

Heavy rains from Tropical Storm Barry are expected from Florida to Louisiana as the eye of the disorganized storm moves onto land. Flooding is the big concern.

The water in the Gulf of Mexico is hot and the Mississippi River is high. That could spell disaster for Louisiana.

The rain and flooding from Tropical Storm Barry are the biggest threat to Louisiana, particularly in the low-lying areas close to the coast. Evacuations are in place and people are concerned.

As sea levels rise, coastal flooding that used to happen only during storms is increasingly occurring on sunny days. That has local officials reconsidering everything from zoning to police budgets.

Forecasters are nervous that 5G communications could interfere with collecting weather information. 5G happens to use bandwidths that include the frequency emitted by moisture in the air.

Flood insurance is getting increasingly expensive. So Congress is trying to restructure the federal flood insurance program and figure out how to help people who live in flood-prone areas.

Federal flood insurance has become dramatically more expensive in some places, putting it out of reach for many people who live on floodplains.

When people who own dogs are stressed, their dogs also get stressed, a new study suggests. It's another indication of how emotionally synchronized dogs and their humans can be.

The flood risk maps put out by the federal government are notoriously outdated. Many elected officials have suggested fixing the problem by prioritizing funding for a mapping technology called LiDAR.

This week the central U.S. has flooded and experienced deadly and damaging tornadoes. When it comes to what Americans could see more of due to climate change — the links are present, but complicated.