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Mythical elves often called the "hidden people" are a key part of Iceland's folklore.

Landfills produce a lot of methane, a heat-trapping gas that contributes to global warming. With scientists calling for cuts in methane emissions, there are challenges to curbing these emissions from landfills, starting with even quantifying them. Pictured here is Waste Management landfill in Livermore, Calif.

Your Trash Is Emitting Methane In The Landfill. Here's Why It Matters For The Climate

Landfills are among the nation's largest sources of methane, a greenhouse gas far more potent than carbon dioxide. But accurately measuring methane is a major challenge to reducing it.

Community clinics say the easing of restrictions on telehealth during the pandemic has made it possible for health workers to connect with hard-to-reach patients via a phone call — people who are poor, elderly or live in remote areas, and don't have access to a computer or cell phone with video capability.

Voice-only telehealth may go away with pandemic rules expiring

State rules were temporarily loosened in 2020 to help patients get care outside a doctor's office. But is telehealth by phone safe and effective? State legislatures and insurers must soon decide.

Jimmy Wales: How Can Wikipedia Ensure A Safe And Shared Online Space?

Wikipedian Jake Orlowitz describes how volunteers update the world's largest encyclopedia. And co-founder Jimmy Wales says the site must not only be a neutral space, but one that encourages diversity.

A bald eagle perches on a tree at Sunset Park in Rock Island, Ill., in March. A new study says that many species of birds increasingly moved in to urban areas as human activity waned during the pandemic.

Birds Thrived Where Humans Feared To Tread During The Pandemic, Scientists Say

A new study shows that as people mostly remained indoors during lockdowns last year, many bird species found less noisy and polluted cities more inviting.

'Apsara Engine' Doesn't Break The Graphic Novel Rules — It Ignores Them

Bishakh Som's new comics collection is uncanny and hard to categorize — science-fictiony, mythic and humanistic, without making any particular assumptions about where humans as a species are going.

An illustration of the DART spacecraft approaching two asteroids; it will crash into the smaller one to try to change how this space rock orbits its larger companion.

In a first test of its planetary defense efforts, NASA's going to shove an asteroid

NASA is about to launch the first mission of its new planetary defense office. A spacecraft will attempt to knock a small asteroid off course by ramming into it.

How other countries at COP26 view American leadership and climate promises

President Biden has declared the U.S. is back as a leader in combatting disastrous climate change. But after years of unfulfilled pledges, how do other countries view American leadership and promises?

Monique Imroth, director of emergency management at UC San Diego Health, adjusts her face covering while standing outside the medical system's Hillcrest location, Nov. 2, 2020.

County Health Officials Urge Public To Continue Routine Medical, Dental Care

The County of San Diego Health and Human Services Agency urged San Diegans to not delay routine medical and dental care amid the COVID-19 pandemic.

For both the unvaccinated and the vaccinated, a mask is still an important protective measure. A new study looks at the best ways to encourage folks to mask up.

A Study In Bangladesh Tripled The Rate Of Mask-Wearing. Can It Help In The U.S.?

Researchers looked at the impact of free masks, text reminders and celebrity endorsements. It's unclear if the best strategies will help counter anti-mask sentiment in the U.S. during the delta surge.

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