At a time when countries are pledging to restore millions of hectares of forest, new research argues that recent studies on forest regeneration techniques are flawed. Sites used to evaluate natural regeneration were secondary growth forests, whereas sites chosen to evaluate artificial regeneration ranged from abandoned coal mines to cattle-trampled fields. Authors of the new study suggest elements of both techniques should be considered, depending on the objectives for a site and its current state.
Ecologists have long known that agricultural and sewage pollution can cause low oxygen conditions and fish kills in rivers. A study published today in Nature Communications reports that hippo waste can have a similar effect in Africa's Mara River, which passes through the world renowned Maasai Mara National Reserve of Kenya, home to more than 4,000 hippos.
Scientists from the University of Leeds have developed a new global index that identifies water supplied from peatlands as a significant source of drinking water for the UK and the Republic of Ireland.
Research has shed new light how an increasingly common consumer product component -- silver nanoparticles -- can potentially interfere with the treatment of wastewater.
Sustainable, biological filters called slow sand filters have been used to filter drinking water since the 1800s. They don't use any chemicals, create no waste and use very little energy. New research from Lund University in Sweden shows that not only are the older filters more efficient cleaners -- they could be making a comeback soon with the help of new technology.
Majorities of Americans say the federal government is doing too little to protect key aspects of the environment, according to a new study released today by Pew Research Center. In a national survey of 2,541 US adults, 69 percent of Americans say the federal government isn't doing enough to protect water quality of lakes, rivers and streams and 64 percent say the same about air quality. Two-thirds (67 percent) say the government is doing too little to reduce the effects of climate change.
A ribbon of ice more than 600 kilometers long that drains about 12 percent of the gigantic Greenland Ice Sheet has been smaller than it is today about half of the time over the past 45,000 years, a new study suggests.
Low rises on the ocean floor at a depth of 5,500 meters in the western North Pacific regulate surface flows and create sharp sea surface temperature (SST) fronts, which have tremendous effects on the climate and marine resources.
A team of researchers found that snow persistence can be used to map patterns of annual streamflow in dry parts of the western United States.
A recent study reveals the large-scale dynamic drivers of the prolonged spring-summer drought over North China, where prolonged drought tends to begin in spring and persists to summer with severe societal impacts.