Excess carbon dioxide emitted by human activities—such as fossil fuel burning, land-use changes, and deforestation—is known as anthropogenic carbon dioxide.

In what they labeled a “surprising” finding, Johns Hopkins Medicine researchers studying bacteria from freshwater lakes and soil say they have determined a protein’s essential role in maintaining the germ’s shape.

An international research team led by the Centre for Microbiology and Environmental Systems Science (CeMESS) at the University of Vienna has discovered that comammox bacteria, first identified by them in 2015, can grow using guanidine, a nitrogen-rich organic compound, as their sole energy and nitrogen source.

Rutgers researchers examined particulate matter from a June 2023 fire that triggered advisories for more than 100 million Americans in the Northeast.

With NASA data showing that July 22, 2024, was the hottest day on record and indications that July may have been the hottest month, an Annenberg Public Policy Center survey conducted in mid-July found that most people know three of the symptoms of a heat-related illness but do not know the location of their nearest cooling center.

Heat related mortality would have been 80% higher in absence of the adaptation observed during the present century.

A new study led by the USC Leonard Davis School of Gerontology shows how feeding mice a drug called GSM-15606 provided protection against air pollution-related increases in proteins linked to Alzheimer’s disease.

Reflecting a “Moore’s Law of aviation,” commercial flight has become roughly twice as safe each decade since the 1960s; Covid-19 added a wrinkle, however.

Anew global analysis of the dietary habits of children and adolescents from 185 countries revealed that youth, on average, consumed nearly 23% more sugar-sweetened beverages in 2018 compared to 1990.

Pesticides and herbicides are critical to ensuring food security worldwide, but these substances can present a safety risk to people who unwittingly ingest them.