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Atmospheric dust levels are rising in the Great Plains
A study finds that atmospheric dust levels are rising across the Great Plains at a rate of up to 5% per year. The trend of rising dust parallels expansion of cropland and even seasonal crop cycles. And if the Great Plains becomes drier, a possibility under climate change scenarios, then all the pieces are in…
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Gut bacteria linked to immune suppression in pancreatic cancer
Researchers have shown how probiotic bacteria in the gut could undermine immunity in pancreatic cancer, pointing toward more personalized cancer treatments. Lactobacillus — a type of bacteria thought to promote gut health — can alter the function of immune cells called macrophages in the pancreatic tumour environment and spur cancer growth, the researchers found. «Most…
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Water pressure: Ancient aquatic crocs evolved, enlarged to avoid freezing
Ancient crocodilian ancestors that abandoned land for water nearly 200 million years ago supposedly got larger because they were released from the constraints of gravity, territory and diet. But a new study suggests that the upper bounds of size in aquatic vs. landlocked crocs were similar — and that smaller aquatic species got larger mostly…
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Improved management of farmed peatlands could cut 500 million tons CO2
Substantial cuts in global greenhouse gas emissions could be achieved by raising water levels in agricultural peatlands, according to a new study in the journal Nature. A team of researchers led by the UK Centre for Ecology & Hydrology estimates halving drainage depths in these areas could cut emissions by around 500 million tonnes of…
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Oldest ever human genetic evidence clarifies dispute over our ancestors
Genetic information from an 800,000-year-old human fossil has been retrieved for the first time. The results shed light on one of the branching points in the human family tree, reaching much further back in time than previously possible. An important advancement in human evolution studies has been achieved after scientists retrieved the oldest human genetic…
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Data identifies turbine wake clustering, improves wind farm productivity via yaw control
Researchers describe a real-time method for potentially helping turbine farms realize additional power from the clustering of their turbines. Their method requires no new sensors to identify which turbines at any given time could increase power production if yaw control is applied, and validation studies showed an increase of 1%-3% in overall power gain. In…
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Engineers discover way to turn organic waste into renewable biofuel additives using radiation
The renewable proportion of petrol is set to increase to 20 per cent over the coming years, meaning the discovery of a new production pathway for these additives could help in the fight to cut carbon dioxide emissions and tackle climate change. Engineers propose a process to generate one such additive, solketal, using waste from…
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Researchers discover fresh water in the Mediterranean Sea
There is enough water on our planet, but by far the largest part is salt water that is unsuitable as drinking water. Therefore, especially in dry regions of the earth, the search for new freshwater resources is very active. An international team of researchers has now discovered strong evidence of a groundwater deposit off the…
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Avian malaria behind drastic decline of London’s iconic sparrow?
London’s house sparrows (Passer domesticus) have plummeted by 71% since 1995, with new research suggesting avian malaria could be to blame. Once ubiquitous across the capital city, the sudden, and unexplained decline of the iconic birds led a team from ZSL (Zoological Society of London), the RSPB, the British Trust for Ornithology (BTO) and the…
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Air pollution significantly reduces pollination by confusing butterflies and bees
A new study finds pollination reduced by almost a third when diesel fumes and ozone were present — the negative impact of these common air pollutants on pollination were observed in the natural environment. Scientists from the University of Reading, the UK Centre for Ecology & Hydrology, and the University of Birmingham found that there…