Environmental Science

Subsidence, or the decline in the elevation of land surface, is creating a problem for some coastal cities as sea levels rise.

By Jesslyn Shields

What's the difference between moissanite and diamonds? And which of these brilliant stones wins out when it comes to the engagement ring competition?

By Mitch Ryan

It's known as the "Gateway to Hell" and while it might not actually get you there, what it will unleash if it keeps thawing could truly be hellish.

By Patrick J. Kiger

The future of electric cars is changing as Sweden builds the world's first electrified road that will charge vehicles as they drive.

By Jesslyn Shields

If you think the largest desert in the world is hot and sandy, think again. These 10 deserts spanning the globe are massive, but they're not all sunbaked.

By Mitch Ryan

The confiscation of a jar of Jif peanut butter by the TSA caused an uproar, but a mechanical engineer explains Newtonian fluids and why the TSA was correct.

By Ted Heindel

Did you know that the sun shines more energy onto the Earth's surface than all of its inhabitants use in an entire year? Learn how to sell electricity back to the grid.

By Allison Wachtel

It's dubbed the Cocos-Galapagos Swimway and this underwater superhighway is part of a plan to protect the world's oceans. But how does a country construct a highway for sea creatures?

By Stephanie Vermillion

Zulu Time is a shorthand for describing a time that is the same no matter where you are in the world. So, how does that work?

By Alia Hoyt

The seven largest countries in the world account for nearly half of the world's land area, but one is far larger than the rest. Do you know what the largest country is?

By Jesslyn Shields

You may have seen an expiration date on your bottle of water, but why? Can a natural substance like water really go bad?

By Alia Hoyt

Sarah Palin never really said she could see Russia from her house. But how far is Russia from Alaska anyway? And can you see one country from the other?

By Mitch Ryan

The oceans take up most of the surface area of our planet and remain mostly unexplored. But how many oceans are there?

By Jesslyn Shields

You could stack the Eiffel Tower, the Washington Monument and the Statue of Liberty in Crater Lake, the deepest lake in the U.S. But, do you know what the deepest lake in the world is?

By Jesslyn Shields

Some scientists say propelling dust from the surface of the moon into space might be a viable solution to our climate change problem, but will it work?

By Jesslyn Shields

The United States is divided into 50 states, small and large. So which is the biggest state in the U.S.A.?

By Sharise Cunningham

The disastrous Feb. 3 train derailment contaminated East Palestine, Ohio. We talked to an expert about the potential environmental and health impacts to come.

By Andrew J. Whelton

Mercedes-Benz hopes to have more than 400 high-speed EV charging hubs online in North America by 2027. That's great for global emissions. Is it great for the electrical grid?

By Talon Homer

This seismic boundary lies within Earth between the bottom of crust and the uppermost mantle. But nobody has ever dug down deep enough to confirm it exists. So does it?

By Allison Troutner

Disputes continue to tangle commercial fishermen and environmentalists in an ongoing and sometimes fraught debate over fishing gear and bycatch.

By Blake Earle

You might be surprised at how little of the world's oceans scientists have investigated.

By Jennifer Walker-Journey

The ocean is so deep, it puts the height of Mount Everest to shame.

By Mark Mancini

The decision made at the 27th General Conference on Weights and Measures will scrap leap seconds for good by 2035.

By Laurie L. Dove

The SWOT satellite is a collaboration between NASA and the French space agency. Its mission is to measure how much water is on Earth and where the water is going.

By Patrick J. Kiger

Ash flows, deadly gases and vog are just a few of the other reasons why we all need to respect volcanoes.

By Brittany Brand