'We declare our support for Extinction Rebellion': an open letter from Australia's academics
Superbug hotspots emerging in farms across globe – study
NASA-NOAA satellite finds Tropical Storm Kiko staying in shape
Global outbreak of antibiotic-resistant superbugs linked to overconsumption of meat
Hotspots of antibiotic-resistant superbugs are springing up in farms around the world, the direct result of our overconsumption of meat, with potentially disastrous consequences for human health, a study has found.
Areas in north-east India, north-east China and the Red River delta in Vietnam were identified as hotspots in Asia, with areas as widely separated as Mexico and Johannesburg also affected. But the hotspots are expanding quickly. The study found areas where resistance to antibiotics among farm animals was starting to emerge in Kenya, Morocco, Uruguay, southern Brazil, central India and southern China. Continue reading...
Over 1,600 scientists call for conservation funding to solve the biodiversity crisis
Satellite imagery from NASA-NOAA's Suomi NPP satellite showed Tropical Storm Kiko maintained its shape and strength after weakening from hurricane-force.
Wild animals' immune systems decline with age, sheep study finds
The journal Science has published a letter titled "Solve the biodiversity crisis with funding," coauthored by scientists at Defenders of Wildlife and universities across the country. More than 1,600 scientists have so far endorsed the letter, calling on Congress to fully fund conservation programs that protect biodiversity from severe and growing threats.
Investments to address climate change are good business
It is well established that weakened immune systems in old age affect people's health and fitness, but a study suggests that it is also an issue for wild animals.
Grains in the rain: New study opens the door to flood resistant crops
An internationally respected group of scientists have urgently called on world leaders to accelerate efforts to tackle climate change. Almost every aspect of the planet's environment and ecology is undergoing changes in response to climate change, some of which will be profound if not catastrophic in the future.
Division by subtraction: Extinction of large mammal species likely drove survivors apart
Of the major food crops, only rice is currently able to survive flooding. Thanks to new research, that could soon change—good news for a world in which rains are increasing in both frequency and intensity.
Antimicrobial resistance is rising drastically: study
When a series of large mammal species began going extinct roughly 12,000 years ago, many surviving species began going their separate ways, says new research led by Macquarie University and the University of Nebraska-Lincoln.
Bridge between quantum mechanics and general relativity still possible
The world is experiencing unprecedented economic growth in low- and middle-income countries. An increasing number of people in India, China, Latin America and Africa have become wealthier, and this is reflected in their consumption of meat and dairy products. In Africa, meat consumption has risen by more than half; in Asia and Latin America it is up by two-thirds.
Physicists discover topological behavior of electrons in 3-D magnetic material
Quantum mechanics and the general theory of relativity form the bedrock of the current understanding of physics—yet the two theories don't seem to work together. Physical phenomena rely on relationship of motion between the observed and the observer. Certain rules hold true across types of observed objects and those observing, but those rules tend to break down at the quantum level, where subatomic particles behave in strange ways.
New study finds US and Canada have lost more than 1 in 4 birds in the past 50 years
An international team of researchers led by scientists at Princeton University has found that a magnetic material at room temperature enables electrons to behave counterintuitively, acting collectively rather than as individuals. Their collective behavior mimics massless particles and anti-particles that coexist in an unexpected way and together form an exotic loop-like structure.
North America has lost nearly 3 billion birds in the last 50 years — another sign that we're in the middle of a 6th mass extinction
A study published today in the journal Science reveals that since 1970, bird populations in the United States and Canada have declined by 29 percent, or almost 3 billion birds, signaling a widespread ecological crisis. The results show tremendous losses across diverse groups of birds and habitats—from iconic songsters such as meadowlarks to long-distance migrants such as swallows and backyard birds including sparrows.
We've lost 3 billion birds since 1970, study shows
A new study found that there's been a 29% decline in bird populations in the US and Canada since 1970.
NASA-NOAA satellite finds Lorena's strong storms lashing Mexico
There are nearly three billion fewer birds in Canada and the United States than there were half a century ago, a new study estimates.
AI helps reduce Amazon hydropower dams' carbon footprint
Imagery from NASA-NOAA's Suomi NPP satellite found Tropical Storm Lorena lashing the western coast of Mexico.
Scientists identify a possible new treatment for diabetic retinopathy
A team of scientists has developed a computational model that uses artificial intelligence to find sites for hydropower dams in order to help reduce greenhouse gas emissions.
Global climate strike: how you can get involved
About 1 in 3 diabetic patients develops diabetic retinopathy (DR), which can impair vision and lead to blindness. A new study provides clear evidence that high glucose increases the levels of enzymatic precursor -- lysyl oxidase propeptide (LOX-PP) -- that promotes cell death, which was verified in an animal model of diabetes. These findings may help develop novel DR treatments by targeting LOX-PP or its metabolites.
A lineage-resolved molecular atlas of C. elegans embryogenesis at single-cell resolution
Millions will take to the streets in global climate crisis protests from 20 to 27 September
The global climate strike kicks off on Friday and will ripple across the world in more than 4,000 locations, the start of a weeklong movement to train international attention on the climate emergency. It’s the latest of a succession of strikes on Fridays led by schoolchildren – but this time adults are invited to join in. Continue reading...
Caenorhabditis elegans is an animal with few cells but a wide diversity of cell types. In this study, we characterize the molecular basis for their specification by profiling the transcriptomes of 86,024 single embryonic cells. We identify 502 terminal and preterminal cell types, mapping most single-cell transcriptomes to their exact position in C. elegans’ invariant lineage. Using these annotations, we find that (i) the correlation between a cell’s lineage and its transcriptome increases from middle to late gastrulation, then falls substantially as cells in the nervous system and pharynx adopt their terminal fates; (ii) multilineage priming contributes to the differentiation of sister cells at dozens of lineage branches; and (iii) most distinct lineages that produce the same anatomical cell type converge to a homogenous transcriptomic state.