Climate change

Land use and pollution shift female-to-male ratios in snapping turtles — ScienceDaily

Most of us know that our biological sex is decided by the pairing of X and Y chromosomes during conception. However, for many wildlife species, sex of offspring is determined after fertilization and often influenced by environmental factors, such as temperature. The sex of reptiles, for example, is based on temperatures in the nest while eggs incubate. Current research shows ...

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How climate change, El Niño, and the sun led us to believe that Lake Superior was a source of CO2 to the atmosphere — ScienceDaily

S.J. & Jessie E. Quinney College of Natural Resources, Utah State University. “Blinded by the light: Climate change, the sun, and Lake Superior: Blinded by the light: How climate change, El Niño, and the sun led us to believe that Lake Superior was a source of CO2 to the atmosphere.” ScienceDaily. ScienceDaily, 24 April 2018. <www.sciencedaily.com/releases/2018/04/180424160239.htm>. S.J. & Jessie E. ...

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Increases in dust due to climate change could result in additional illness and deaths in US Southwest by 2100 — ScienceDaily

In 1935, at the height of the Dust Bowl, a team of researchers from the Kansas Board of Health set out to understand the impact of dust on human health. In areas impacted by dust storms, the researchers documented an increase in respiratory infections, a 50-to-100 percent increase in pneumonia cases and an overall increase in “morbidity and mortality from ...

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Winter wave heights and extreme storms on the rise in Western Europe — ScienceDaily

Average winter wave heights along the Atlantic coast of Western Europe have been rising for almost seven decades, according to new research. The coastlines of Scotland and Ireland have seen the largest increases, with the average height of winter waves more than 10mm/year (more than 0.7metres in total) higher than in 1948. That has also led to increased wave heights ...

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Technique popularized through social media ranks impact of extinctions — ScienceDaily

A team of researchers is using network analysis techniques — popularized through social media applications — to find patterns in Earth’s natural history, as detailed in a paper published today in the Proceedings of the National Academy of Sciences (PNAS). By using network analysis to search for communities of marine life in the fossil records of the Paleobiology Database, the ...

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Carbon capture could be a financial opportunity for US biofuels — ScienceDaily

Although considered critical to avoiding catastrophic global warming, the feasibility of removing carbon dioxide from the atmosphere and storing it underground — known as negative emissions — has been in question. “There’s really no scenario that meets the world’s climate goals without negative emissions,” said Katharine Mach, a senior research scientist at Stanford’s School of Earth, Energy and Environmental Sciences. ...

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Hungry birds as climate change drives food ‘mismatch’ — ScienceDaily

Warmer springs create a “mismatch” where hungry chicks hatch too late to feast on abundant caterpillars, new research shows. With continued spring warming expected due to climate change, scientists say hatching of forest birds will be “increasingly mismatched” with peaks in caterpillar numbers. The researchers, from the RSPB and the universities of Exeter and Edinburgh, used data collected across the ...

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Grassland plants react unexpectedly to high levels of carbon dioxide — ScienceDaily

Plants are responding in unexpected ways to increased carbon dioxide in the air, according to a twenty-year study conducted by researchers at the University of Minnesota and published in the journal Science. For the first 12 years, researchers found what they expected regarding how different types of grasses reacted to carbon dioxide. However, researchers’ findings took an unanticipated turn during ...

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Tiny microenvironments in the ocean hold clues to global nitrogen cycle — ScienceDaily

Nitrogen is essential to marine life and cycles throughout the ocean in a delicately balanced system. Living organisms — especially marine plants called phytoplankton — require nitrogen in processes such as photosynthesis. In turn, phytoplankton growth takes up carbon dioxide from the atmosphere and helps regulate global climate. According to new research by Thomas Weber, an assistant professor of Earth ...

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