Preventing reservoir evaporation during droughts with floating balls may not help conserve water overall, due to the water needed to make the balls.
Thousands of miles of buried fiber optic cable in densely populated coastal regions of the United States may soon be inundated by rising seas, according to a new study by researchers at the University of Wisconsin-Madison and the University of Oregon.
In a new study, Harvard researchers say they may be able to estimate how glaciers moved by examining how the weight of the ice sheet altered topography and led to changes in the course of the river. The study is described in a July 2018 paper published in Geology.
New research from scientists at Point Blue Conservation Science and The Nature Conservancy shows how financial incentive programs can create vital habitat for waterbirds, filling a critical need in drought years. Researchers used satellite images to evaluate two issues: 1) the impact of the 2013-2015 drought on waterbird habitat in the Central Valley; and, 2) the amount of habitat created by incentive programs.
A new Portland State University study shows that even though water quality has improved in South Korea's Han River basin since the 1990s, there are still higher-than-acceptable levels of pollutants in some of the more urbanized regions in and around the capital Seoul.
Sea-level rise will endanger valuable salt marshes across the United Kingdom by 2100 if greenhouse gas emissions continue unabated, according to an international study co-authored by a Rutgers University-New Brunswick professor. Moreover, salt marshes in southern and eastern England face a high risk of loss by 2040, according to the study, to be published in Nature Communications.
The compound urea is currently the most popular nitrogen soil fertilizer. It's a way to get plants the nitrogen they need to grow. There's just one problem with urease: it works too well! New research suggests farmers may have a choice in how they slow the release of nitrogen, depending on their soil's acidity.
Stormwater retention ponds, a ubiquitous feature in urban landscapes, are not a significant source of climate-warming nitrous oxide emissions, a new Duke-led study finds. Nitrous oxide is a potent greenhouse gas that contributes to global warming and destroys stratospheric ozone. Previous studies suggested stormwater ponds might be a problematic source of the gas, since they produce it as a by-product of the denitrification process that removes excess nitrogen from urban runoff.
Most of the carbon resulting from wildfires and fossil fuel combustion is rapidly released into the atmosphere as carbon dioxide. Researchers at the University of Zurich have now shown that the leftover residue, so-called black carbon, can age for millennia on land and in rivers en route to the ocean, and thus constitutes a major long-term reservoir of organic carbon. The study adds a major missing piece to the puzzle of understanding the global carbon cycle.
As part of an international team, a researcher from the University of Liverpool reconstructed the 1929 Grand Banks underwater avalanche to better understand these common geohazards, which threaten critical seafloor infrastructure.