This myth about guns is killing us

OPINION: The idea that gun violence prevention research is at odds with gun rights is just not true

How cities can fight climate change

Urban activities — think construction, transportation, heating, cooling and more — are major sources of greenhouse-gas emissions. Today, a growing number of cities are striving to slash their emission to net zero — here’s what they need to do.

How smart windows save energy

Specialized glass that keeps heat in during winter and lets it out during summer could make buildings much more efficient — if costs and complexities don’t get in the way

Mitochondria and the origin of eukaryotes

Were the powerhouse organelles a driving force or a late addition in the evolution of more complex cells like ours?

Call of the deep

Some of the ocean’s biggest predators dive way down into the cold, dark depths. Animals-turned-oceanographers are helping biologists find out what they do when they get there.

The origins and future of the Grand Canyon

EVENT: How old is the Grand Canyon? Will the Colorado River run dry? Learn about how the Big Ditch formed, and the present state and uncertain future of the Colorado River watershed at a free online event, Wednesday June 29.

Make electric vehicles affordable for the rest of us

OPINION: EV subsidies are poorly designed and mostly benefit the rich. Some simple changes could make them more effective and equitable.

The creative way to pay for wildlife recovery

OPINION: ‘Pragmatic rewilding’ restores damaged ecosystems and harnesses private money, with benefits for all

A lifetime of climate change

Researcher Arun Agrawal has lived three decades on either side of a watershed: the United Nations Framework Convention on Climate Change, signed 30 years ago this June. His 60 years are a window into how far we have come, and how far there is to go.

The race against radon

Scientists are working to map out the risks of the permafrost thaw, which could expose millions of people to the invisible cancer-causing gas

The tale of the domesticated horse

The beloved animal has shaped human history over millennia, just as people have influenced its evolution — but only recently have scientists discovered exactly when and where it went from wild to tame

Gallium: The liquid metal that could transform soft electronics

Bend it. Stretch it. Use it to conduct electricity. Researchers are exploring a range of applications that harness the element’s unusual properties.

Does online opioid treatment work?

The Covid-19 pandemic brought a sudden shift to virtual health care. That has increased access — and possibly outcomes, too — for patients with opioid use disorder.

The awake ape: Why people sleep less than their primate relatives

Ancient humans may have evolved to slumber efficiently — and in a crowd

Mining museums’ genomic treasures

The world’s natural history collections hold billions of biological specimens, many of which still contain DNA. Scientists exploring these genetic repositories are gaining new, historical perspectives on how animals evolve.

How antidepressants changed ideas about depression

PODCAST: Serendipitous discoveries led to drugs like Prozac and to new insights into the physical basis of this debilitating disorder. But scientists continue to search for deeper understandings and therapies that will bring relief to those who still struggle. (Season 2, Episode 6)

The first malaria vaccine is a leap forward, but we can’t stop now

OPINION: Next-generation vaccines, and a lot more money, are needed now to crack the stalemate in the fight against malaria

Rethinking air conditioning amid climate change

ACs and refrigerators help keep people safe — but they also further warm the planet. Scientists are working on eco-friendlier solutions as global demand for cooling grows.

Don’t let climate change take all the blame

OPINION: The climate crisis is a massive problem, but when politicians fault it entirely for every disaster, attention is deflected from local measures that might build resiliency. That needs to change.

Could high-flying kites power your home?

Nearly a dozen companies are betting on computer-controlled, airborne wind energy to electrify the future

Covid-19: Origins of an outbreak

VIDEO: Where do new diseases come from? As people increasingly push into remote areas, the risk of encountering new pathogens increases, says wildlife epidemiologist Jonna Mazet.