sciences energies environnement

 Dear olivier hartmanshenn,

Here is your customized Science X Newsletter for week 20:

	Chemical analysis of natural CO₂ rise over the last 50,000 years shows that today's rate is 10 times faster Today's rate of atmospheric carbon dioxide increase is 10 times faster than at any other point in the past 50,000 years, researchers have found through a detailed chemical analysis of ancient Antarctic ice.
	Long-term study finds organic farming leads to adaptations in the genetic material in plants Plants adapt genetically over time to the special conditions of organic farming. This has been demonstrated in a long-term study conducted at the University of Bonn.
	In a reservoir in Southeast Brazil, introduction of a fish native to the Amazon has reduced native species diversity The silver croaker (Plagioscion squamosissimus), a fish native to the Amazon (corvina or pescada-branca in Portuguese), is the most probable cause of a sharp fall in the diversity of native species in the Jaguari reservoir, the Jaguari River and Rio do Peixe, all of which are part of the Cantareira Water Production System and the Paraíba do Sul Basin in São Paulo state, Brazil.
	Spiny legged 308-million-year-old arachnid discovered in the Mazon Creek locality More than 300 million years ago, all sorts of arachnids crawled around the Carboniferous coal forests of North America and Europe. These included familiar ones we'd recognize, such as spiders, harvestmen and scorpions—as well as exotic animals that now occur in warmer regions like whip spiders and whip scorpions.
	Study finds what gets plant roots to grow strong A biological mechanism familiar to people who fast helps plant roots grow strong. The discovery by University of Copenhagen scientists provides an answer to a long-unanswered question and a deeper understanding of the "mouths" of plants that can help to develop climate-resilient crops.
	Underground 'anomaly' found near iconic Giza pyramid complex A multi-institutional team of archaeological researchers from Japan and Egypt has discovered what they describe as an underground "anomaly" near the iconic Giza pyramid complex. In their study, published in the journal Archaeological Prospection, the group used both ground-penetrating radar (GPR) and electrical resistivity tomography (ERT) to investigate the area beneath the Western Cemetery in Giza.
	Researchers develop increasingly sustainable methods for dissolving gold, silver and copper from recycled materials Waste from computers and cell phones, solar panels and other discarded electronics are becoming an important source of noble metals alongside mining. Researchers at the University of Helsinki have developed sustainable dissolution methods for noble metals.
	Sun shoots out biggest solar flare in almost 2 decades, but Earth should be out of the way this time The sun produced its biggest flare in nearly two decades Tuesday, just days after severe solar storms pummeled Earth and created dazzling northern lights in unaccustomed places.
	Study finds paleolithic people settled in Cyprus thousands of years earlier than previously thought The patterns of dispersal of early humans across continents and islands are hotly debated, but according to a new study in Proceedings of the National Academy of Sciences, Pleistocene hunter-gatherers settled in Cyprus thousands of years earlier than previously thought.
	Carbon pricing works, major meta-study finds Between 5 and 21% emission reductions: this is the empirically measured effect of carbon pricing systems in their first few years of operation. A research team now identifies these findings for 17 real-world climate policies around the globe, condensing the state of knowledge more comprehensively than ever. The team uses artificial intelligence to collate existing surveys, making them comparable using a novel calculation concept.
	Tiger beetles fight off bat attacks with ultrasonic mimicry Bats, as the main predator of night-flying insects, create a selective pressure that has led many of their prey to evolve an early warning system of sorts: ears uniquely tuned to high-frequency bat echolocation. To date, scientists have found at least six orders of insects—including moths, beetles, crickets and grasshoppers—that have evolved ears capable of detecting ultrasound.
	Study supports theory that humans evolved the ability to run long distances to capture prey A pair of anthropologists, one with Trent University, in Canada, the other with the University of California, Davis, in the U.S., reports evidence in support of a theory that humans developed the ability to run long distances to capture fast-running animals.
	First direct imaging of radioactive cesium atoms in environmental samples Thirteen years after the nuclear disaster at the Fukushima Daiichi Nuclear Power Plant (FDNPP), a breakthrough in analysis has permitted a world first: direct imaging of radioactive cesium (Cs) atoms in environmental samples.
	Discovery may explain why Egyptian pyramids were built along long-lost Ahramat branch of the Nile Some 31 pyramids in Egypt, including the Giza pyramid complex, may originally have been built along a 64-km-long branch of the river Nile which has long since been buried beneath farmland and desert. The findings, reported in a paper in Communications Earth & Environment, could explain why these pyramids are concentrated in what is now a narrow, inhospitable desert strip.
	Anticipating future discoveries: Scientists explore nontrivial cosmic topology In a new Physical Review Letters (PRL) study, scientists explore the possibility of nontrivial or exotic topologies in the universe for explaining some of the anomalies seen in Cosmic Microwave Background (CMB).
	Astronomers find the biggest known batch of planet ingredients swirling around young star Astronomers have discovered what they believe is the biggest known batch of planet-making ingredients swirling around a young star.
	Astronomers discover merging twin quasars Using the Subaru Telescope in Hawaii, astronomers have detected a pair of merging quasars at a high redshift, as part of the Hyper SuprimeCam (HSC) Subaru Strategic Program (SPP) survey. The serendipitous discovery is reported in the latest issue of the Astrophysical Journal Letters.
	2023 was the hottest summer in 2,000 years, study finds Researchers have found that 2023 was the hottest summer in the Northern Hemisphere in the past 2,000 years, almost 4°C warmer than the coldest summer during the same period.
	Physicists create five-lane superhighway for electrons MIT physicists and colleagues have created a five-lane superhighway for electrons that could allow ultra-efficient electronics and more. The work, reported in the May 9 issue of Science, is one of several important discoveries by the same team over the last year involving a material that is essentially a unique form of pencil lead.
	'Danger behind the beauty': More solar storms could be heading our way