Tag

ecosystems

Reforesting Kilimanjaro could ease East Africa's severe water shortages

There is a need to reforest Africa’s highest mountain to help protect vital water supplies that are under threat across large parts of East Africa, a UN Environment report urged today. The loss of Mount Kilimanjaro’s forests could trigger water crisis as rivers begin to dry up, notes
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Salty snow could affect air pollution in the Arctic

In pictures, the Arctic appears pristine and timeless with its barren lands and icy landscape. In reality, the area is rapidly changing.  Scientists are working to understand the chemistry behind these changes to better predict what could happen to the region in the future. One team r
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Modeling Floods That Formed Canyons on Earth and Mars

Geomorphologists who study Earth’s surface features and the processes that formed them have long been interested in how floods, in particular catastrophic outbursts that occur when a glacial lake ice dam bursts, for example, can change a planet’s surface, not only on Earth but on Mars
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Stanford researchers capture Central Asia's 'de-greening' over millions of years into a modern-day desert

A new study chronicles how central Asia dried out over the last 23 million years into one of the most arid regions on the planet. The findings illustrate the dramatic climatic shifts wrought by the ponderous rise of new mountain ranges over geologic time. Researchers have long cited t
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Climate Change Has Doubled Western U.S. Forest Fires

A new study says that human-induced climate change has doubled the area affected by forest fires in the U.S. West over the last 30 years. According to the study, since 1984 heightened temperatures and resulting aridity have caused fires to spread across an additional 16,000 square mil
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To Help Bees, Skip Herbicides and Pesticides, Keep Lawns Naturally Diverse

Declining populations of pollinators is a major concern to ecologists because bees, butterflies and other insects play a critical role in supporting healthy ecosystems. Now a new study from urban ecologists at the University of Massachusetts Amherst suggests that when urban and suburb
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Bees Are Declared Endangered for the First Time in the U.S.

For the first time in history, a group of bees in the U.S. will be protected under the Endangered Species Act, following a recent announcement from wildlife officials. The group of bees, who are commonly known as yellow-faced bees because of the markings on their faces, are endemic on
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Urban Warming Slows Tree Growth, Photosynthesis

New research from North Carolina State University finds that urban warming reduces growth and photosynthesis in city trees. The researchers found that insect pests are part of the problem, but that heat itself plays a more significant role. “Earlier studies have shown that urban warmi
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UC Researcher Develops Clean Water-Treatment Option to Target Sporadic Outbreaks

A University of Cincinnati scientist has engineered an environmentally friendly technology to zap outbreak-causing viruses and bacteria from public drinking water. Environmental and biomedical engineer David Wendell, an associate professor in UC’s College of Engineering and Applied Sc
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The Psychology Behind Climate Change Denial

Climate change is a serious threat to humans, animals, and the earth’s ecosystems. Nevertheless, effective climate action has been delayed, partly because some still deny that there is a problem. In a new thesis in psychology, Kirsti Jylhä at Uppsala University has studied the psychol
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