From the snow on Mount Everest to the guts of critters in the Mariana Trench, tiny fragments called microplastics are almost everywhere.
Also known as snake worms, these writhing wrigglers turn forest leaf litter into bare ground, changing soil composition and ecosystems as they go.
As wildfires become more frequent and severe in California, Oregon and throughout the West Coast, concerns rise about harmful air pollution.
In the lab, scientists taught tobacco hawkmoths that a scent changed by ozone is from a favorite flower.
Meteorologists are pushing to make forecasts good enough to fill the gap between short-term and seasonal.
New estimates suggest coronavirus shutdowns cut global carbon dioxide emissions from fossil fuels by nearly 30 percent, on average.
Biologists have just begun to learn whether their bold plan worked to save the golden riffleshell, a freshwater mussel teetering on the brink of extinction.
Air pollution has declined in the United States, but marginalized communities are still disproportionately affected despite the improvement.
A jar left soaking in an office sink helped scientists answer a century-old question of whether bacteria can use manganese for energy.
Releases of the heat-trapping gas methane from human activities have ramped up in the 21st century, especially in Africa and Asia.