Ozone concentrations in U.S. national parks like Yellowstone and Acadia were largely indistinguishable from ozone levels in America's largest metropolitan areas between 1990 and 2014, according to a new analysis. It also suggests higher ozone levels are linked to a decrease in park visitation, during this time. The U.S. National Park Service has raised concerns over
Many people view the Tibetan Plateau, or 'Roof of the World,' as a pristine alpine environment, largely untouched by pollution. But researchers, reporting in ACS' journal Environmental Science & Technology, have now shown that traditional Tibetan medicine exposes people and the environment to high levels of mercury and methylmercury.
The research matched pollution data to monthly park visitation statistics at 33 heavily visited national parks and found that visitation responds most to ozone during months with poor air quality.
Particulate matter deposits on leaves increase plant transpiration and the risk of plants suffering from drought. Particulate matter could thus be contributing more strongly to tree mortality and forest decline than previously assumed. This is suggested by results from a greenhouse study led by the university of Bonn, in which tree seedlings grown in almost particulate matter free air or in unfiltered air were compared. The results are now being published in "Environmental Research Letters".
University of Melbourne researchers have helped create the first tool to calculate the 'nitrogen footprint' of an organisation. The tool will provide a guide to sustainability and pollution reduction for daily activities such as food consumption, travel and energy use.
Policies to entice consumers away from fossil-fuel powered vehicles and normalize low carbon, alternative-fuel alternatives, such as electric vehicles, are vital if the world is to significantly reduce transport sector carbon emissions, according to new research.
Solar contracts are usually only for 20 years. But ACWA Power's contract with DEWA in Dubai will run until 2055 -- the world's first 35 year solar contract. Did the length of the contract enable its record-low price for this kind of round-the-clock solar?
Washington State University researchers have created a sustainable alternative to traditional concrete using coal fly ash, a waste product of coal-based electricity generation.
Dozens of global sustainability experts and stakeholders have called for urgent action to exploit the connections between goals designed to end poverty, hunger and environmental destruction.
A study finds that chemicals used in flame retardants, plasticizers and other commercial products are broken down through the process of metabolism into other compounds. Researchers say not enough is known about the dangers posed by those compounds, known as metabolites.