A new U.S. Geological Survey laboratory study of two potentially toxic types of freshwater cyanobacteria, or blue-green algae, found that exposure to salty water can damage the cyanobacteria cells’ walls, causing them to release their toxins into the water.

Scientists studying a valuable, but vulnerable, species of poplar have identified the genetic mechanism responsible for the species’ inability to resist a pervasive and deadly disease. Their finding, published in the Proceedings of the National Academy of Sciences, could lead to more successful hybrid poplar varieties for increased biofuels and forestry production and protect native trees against infection.

With a body the size of a fist and wings that span more than a foot, the big brown bat must gorge on 6,000 to 8,000 bugs a night to maintain its stature.

Ecosystems have a variety of benefits: They provide us with food, water and other resources, as well as recreational space. It is therefore even more important that these systems remain functional and stable – especially in view of climate change or environmental pollution. Ecologists at the University of Zurich and the Swiss Federal Institute of Aquatic Science and Technology (Eawag) have now examined the factors that influence this stability in a unique and comprehensive experiment.

A new analysis of ocean regions around the world shows that bottom trawling, which accounts for a quarter of the world’s seafood harvest and can negatively affect marine ecosystems, occurs on just 14 percent of the seafloor along continental shelves and slopes.

More than 1.5 million Michigan residents and potentially more than hundreds of sites nationwide ­– and counting – have PFAS-tainted water.

Adding to growing evidence that pesticide use may be contributing to the decline of many bumblebee species across North America, a new study reveals that daily consumption of even small doses of a widely used class of insecticides known as neonicotinoids reduces the survival of queen and male bees, which are critical to the survival of wild populations. The study also found that exposure to the chemicals alters the expression of genes regulating biological functions such as locomotion, reproduction, immunity, and learning and memory, suggesting that neonicotinoids may be having a greater negative impact on the viability of wild bumblebee populations than previously thought.

The sky was dark and overcast, but the gloomy weather belied the team's excitement.

Ground penetrating radar isn’t something from the latest sci-fi movie. It’s actually a tool used by soil scientists to measure the amount of moisture in soil quickly and easily.

Scientists say there is not yet enough evidence to conclude that microplastics (MPs) do or do not cause harm to the environment, following a review of more than 300 global studies.