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Inexpensive semiconducting organic polymers can harvest sunlight to split carbon dioxide into alcohol fuels
Chemists at The University of Texas at Arlington have been the first to demonstrate that an organic semiconductor polymer called polyaniline is a promising photocathode material for the conversion of carbon dioxide into alcohol fuels without the need for a co-catalyst."This opens up a new field of research into new applications for inexpensive, readily available…
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A Cruise Ship Just Sailed the Northwest Passage, Thanks to Climate Change
The Northwest Passage originated as an unattainable and lethal legend when Europeans arrived in the Americas and longed for an easy sea route across North America. Now, a cruise ship has successfully traversed the route in only a month.It wasn’t until 1906 that Norwegian explorer Roald Amundsen successfully — but with extreme difficulty — navigated what had, until then, been a…
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Soil will absorb less atmospheric carbon than expected this century, study finds
By adding highly accurate radiocarbon dating of soil to standard Earth system models, environmental scientists from the University of California, Irvine and other institutions have learned a dirty little secret: The ground will absorb far less atmospheric carbon dioxide this century than previously thought.Researchers used carbon-14 data from 157 sample sites around the world to…
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Birds prefer quality over quantity
In a new study that upends the way ornithologists think about a young bird’s diet – but won’t shock parents used to scanning the nutritional profile of their children’s food – Cornell researchers have found that when it comes to what chicks eat, quality trumps quantity.In recent decades, many aerial insectivores, such as tree swallows,…
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Greenland ice is melting seven percent faster than previously thought
The same hotspot in Earth's mantle that feeds Iceland's active volcanoes has been playing a trick on the scientists who are trying to measure how much ice is melting on nearby Greenland.According to a new study in the journal Science Advances, the hotspot softened the mantle rock beneath Greenland in a way that ultimately distorted their…
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Where and how climate change is altering species
New research published Monday (Sept. 19) in the journal Nature Climate Change by researchers at Aarhus University in Denmark and the University of Wisconsin-Madison illuminates where and why novel species combinations are likely to emerge due to recent changes in temperature and precipitation. The study includes global maps of novelty that offer testable predictions and carry important…
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Soil management may help stabilize maize yield in the face of climate change
How will we feed our growing population in the face of an increasingly extreme climate? Many experts suggest the answer lies in breeding novel crop varieties that can withstand the increases in drought, heat, and extreme rainfall events predicted in the not-too-distant future. But breeding is only part of the equation, according to new research…
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Arctic Sea Ice Extent in 2016 Ties as Second Lowest in The Satellite Record
Arctic sea ice extent shrank to 1.6 million square miles earlier this month — tying 2016 with 2007 as the second lowest sea ice minimum since satellite records began. The lowest year remains 2012. The new measurements follow a decades-long trend of declining sea ice extent in the Arctic as global temperatures rise.
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You Could Be Eating Endangered Fish Without Even Realizing It
When you go out for sushi or visit a seafood restaurant, how sure can you be that you’re really getting what you’ve ordered? Last week, Oceana released some shocking findings: Around the world, an average of one in five samples of seafood is mislabeled.The report examined 25,000 samples worldwide and reviewed more than 200 published studies from 55 different countries.…
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Heatwaves in the ocean: Risk to ecosystems?
Marine ecosystems are responsible for about half of global annual primary production and more than one billion people rely on fish as their primary protein source. Latest studies show that enormous warm water bubbles in the ocean are having a noticeable impact on ecosystems. How should we interpret these changes?