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Environmental health

Hammerhead shark (Sphyrnidae) swimming in tropical underwaters. 3d illustration rendering
Environmental health
With pay-to-release fish conservation, there's a catch
Published May 15, 2025
Programs promising to save endangered species of sharks and other fish by incentivizing their release may be backfiring, according to researchers at Johns Hopkins and Oxford University
An aerial view of South Baltimore's Curtis Bay industrial area
Research matters
Researchers address community health concerns
Published Feb 14, 2025
With NIH support, JHU researchers work with communities to determine how pollutants and other environmental factors affect human biology and may lead to disease
A vibrant sunrise in the beautiful natural surroundings of Orlando Wetlands Park in central Florida
Q+A
Microbes, not fossil fuels, biggest source of rising atmospheric methane levels
Published Nov 12, 2024
Hopkins expert Scot Miller discusses a new analysis challenging assumptions about the drivers of spiraling global methane levels
Omar Lloyd carries flats of grass plants while working on installing the Harbor Wetlands exhibit
Environmental science
Alum helps harbor wetland flourish
Published Aug 12, 2024
Omar Lloyd, A&S '20, helped the National Aquarium bring a tidal salt marsh back to the Inner Harbor
Three men stand in an underground tunnel in 1907. A note written on the image reads "183 Nov-12-07."
Baltimore history
The ghost river under Homewood
Published July 15, 2024
A public installation by local artist Bruce Willen traces a buried stream, which used to define the North Baltimore landscape, which now includes the university's 140-acre campus
Aerial view of modern water cleaning facility at urban wastewater treatment plant. Purification process of removing undesirable chemicals, suspended solids and gases from contaminated liquid.
Environmental health
Team targets safety of fertilizers made from wastewater sludge
Published June 25, 2024
Johns Hopkins researchers create new list of possibly toxic contaminants commonly found in biosolids nationwide
Cigarette butts scattered among rocks
Environmental health
The impact of cigarette butts
Published April 22, 2024
Cigarette butts are the most littered item on the planet. Two new studies from the Institute for Global Tobacco Control point to possible solutions.
Filling up a glass of water
3 questions
EPA phases out PFAS
Published April 19, 2024
U.S. Environmental Protection Agency imposes first-ever regulations limiting chemicals known as PFAS, or forever chemicals, in drinking water
A large blue tent completely covers a home
Environmental health
California leads U.S. emissions of little-known greenhouse gas
Published April 3, 2024
The state emits more of the common pesticide sulfuryl fluoride than the rest of country combined, a JHU study finds
Justin Pearson
Environmental health
Researchers urged to partner to advance environmental justice
Published March 12, 2024
Tennessee state Rep. Justin J. Pearson delivers remarks as part of the Department of Environmental Health and Engineering's monthly Grand Rounds series