DNA Detectives: How scientists are using DNA from the environment to see the unseen

by Sanjana Kulkarnifigures by Swathy Karamchedu Forensic DNA testing has become crucial in criminal investigations and legal proceedings. DNA has linked people to crime scenes using hair or blood and exonerated wrongfully convicted individuals. This type of DNA is called environmental DNA (eDNA) because it is collected from the environment, rather than from a person. Scientists have also begun analyzing eDNA from non-human organisms. All … Continue reading DNA Detectives: How scientists are using DNA from the environment to see the unseen

United Nations Report Highlights Opportunities to Improve Global Air Quality

by Nadia Colombifigures by Daeun Jeongedited by Jennifer Sun Air pollution contributes to roughly 7 million deaths worldwide every year. It is among the leading avoidable causes of disease and death globally, and the world’s largest environmental health risk. Furthermore, it is a cause of global health inequities, disproportionately affecting women, children, the elderly, and low-income populations.  Working collectively to implement air quality standards that … Continue reading United Nations Report Highlights Opportunities to Improve Global Air Quality

Internationally Banned Ozone-Destroying Pollutant Emissions in China have Declined

For years, banned air pollutants that damage the ozone layer have been coming out of eastern China. Using the same atmospheric monitoring network that first detected the pollution, scientists recently found that the emissions from the country have now largely stopped. Continue reading Internationally Banned Ozone-Destroying Pollutant Emissions in China have Declined

What Does a Public Health Scientist Do?

How do you introduce yourself, scientifically?  My name is Daniel Arias and I am a public health scientist specializing in health systems and health financing. I think the inclusion of ‘scientist’ after public health is valuable—our work is grounded in theory, relies on systematic observation of the world, and is conducted with methodological rigor, yet many researchers who work in public health have to push … Continue reading What Does a Public Health Scientist Do?