91ÉçÇø¸£Àû

By distinguishing between lead from modern sources and lead from pre-1970s vehicle exhaust fumes and leaded paint, the new test may be especially useful for assessing the hidden risks of legacy contamination.

Clouds of smoke and ash from wildfires that ravaged Australia in 2019 and 2020 triggered widespread algal blooms in the Southern Ocean thousands of miles downwind to the east, a new 91ÉçÇø¸£Àû-led study by an international team of scientists finds.

Warming waters along the Western Antarctic Peninsula have led to declines in the diversity and distribution of the region’s plankton population and its ability to absorb climate-warming carbon dioxide from the atmosphere.

Reducing emissions of methane, a short-lived but super-potent greenhouse gas, is the most cost-effective way to slow the rate of Earth’s warming in coming decades, a new United Nations report finds.

Harnessing the power of artificial intelligence, satellites and field observations, Duke researchers have produced new estimates of how much photosynthesis and primary production – key components in the global carbon cycle – are occurring in Earth’s oceans, and how these processes may be changing in response to a changing climate.

Policies that more strongly recognize the value of sustainable seafood as a source of nutrition, not just a source of livelihoods, could strengthen global food security and help take a big bite out of world hunger, a new analysis by an international team of experts shows.

Researchers have used automatic identification systems (AIS) satellite data and other spatial analysis tools to identify more than 1,000 companies that fish in the high seas—waters that lie outside national jurisdiction where fishing has raised fears about environmental and labor violations.

The proliferation of pits and ponds created in recent years by miners digging for small deposits of alluvial gold in Peru’s Amazon has dramatically altered the landscape and increased the risk of mercury exposure for indigenous communities and wildlife, a new study shows.

Groundwater depletion in parts of the High Plains is so extreme that peak grain production in some states has ended and production is now declining, a new 91ÉçÇø¸£Àû-led study by a team of international scientists finds.

Students at North Carolina’s 10 historically black colleges and universities (HBCUs) face limited options for finding healthy food to buy at stores within a 5-mile radius of their campuses, a new study shows.

By providing the first estimate of how much hydrogen is available to fuel microbial life in the sunless sub-seafloor crust beneath the Mid-Ocean Ridge (MOR), a new 91ÉçÇø¸£Àû-led study sheds light on one of Earth’s least understood biospheres.

To devise effective and equitable policies for governing small-scale fisheries, policymakers need to consider the activities and relationships that occur before and after fishers land their catches, not just the catches themselves, a new study shows.

The ratio of carbon isotopes in three common species of tuna has changed substantially since 2000, suggesting major shifts are taking place in phytoplankton populations that form the base of the ocean’s food web, a new international study finds.

A new study which combines measurements from nearly 1,400 drinking water wells across North Carolina estimates that more than half of the wells in the state’s central region contain levels of cancer-causing hexavalent chromium in excess of state safety standards.

With the Environmental Protection Agency (EPA) poised to loosen coal ash rules for dry onsite storage and large fill projects, a new study from 91ÉçÇø¸£Àû finds that leaving those contaminants exposed may significantly heighten the risk of toxic contamination to nearby soil and waterways.