Municipal solid waste is trash — such as plastic, food scraps and lawn clippings — that goes into garbage bins and doesn’t get recycled. 

When people take medications, these drugs and their metabolites can be excreted and make their way to wastewater treatment plants. 

Injecting the right dose of sulphur dioxide into Earth’s upper atmosphere to thicken the layer of light reflecting aerosol particles artificially could reduce the effects of climate change overall, according to UCL and Harvard researchers.

Recent data have shown a decline of air pollution over northern Italy coinciding with its nationwide lockdown to prevent the spread of the coronavirus (COVID-19).

Sifting through diamond exploration samples from Baffin Island, Canadian scientists have identified a new remnant of the North Atlantic craton—an ancient part of Earth's continental crust.

Researchers at MIT and the University of Colorado at Denver have proposed a stopgap measure that they believe could help Covid-19 patients who are in acute respiratory distress.

Scientists have devised a simple new model that explains how the undesirable effects of urban heat islands vary across seasons.

Despite fundamental differences in their biology, plants and animals are surprisingly similar in how they have evolved in response to climate around the world, according to a new study published this week in Nature Ecology and Evolution.

Changes in a specific type of sugarlike molecule, or glycan, on the surface of cancer cells help them to spread into other tissues, according to researchers at the University of California, Davis. 

Despite increasing awareness of how critical sleep is to our health, getting a good night’s rest remains increasingly difficult in a world that’s always “on” — responding to emails at all hours, news cycles that change with every tweet and staring endlessly into the blue light of cell phone, tablet and computers screens.