Generating wind energy is more than twice as cheap as solar photovoltaic energy production, a study of alternative energy in six developing countries has found. The findings, published in Nature Climate Change, could help inform global debates on financing initiatives aimed at reducing greenhouse gas emissions in developing countries. The authors note that differentiating technologies…
When it comes to adapting to climate change, diversity is the mammal’s best defense. That is one of the conclusions of the first study of how mammals in North America adapted to climate change in “deep time” – a period of 56 million years beginning with the Eocene and ending 12,000 years ago with the…
Scientists have uncovered clues as to how our genomes became riddled with viruses, some dating back 100 million years. More than 90 per cent of every mammal’s genome has no known function, with much of this genetic ‘dark matter’ harboring pieces of DNA from ancient viruses that infected our ancestors. The new investigation, by researchers…
Swiss scientists have demonstrated how a partially paralyzed person can control a robot using brain signals alone. The team at Switzerland’s Federal Institute of Technology in Lausanne says the experiment takes them a step closer to enabling immobile patients to easily interact with their surroundings through a robot ‘avatar.’ The demonstration involved a partially tetraplegic…
Scientists say the notoriously dry continent of Africa is sitting on a vast reservoir of groundwater. They argue that the total volume of water in aquifers underground is 100 times the amount found on the surface. The team have produced the most detailed map yet of the scale and potential of this hidden resource. Writing…
Big science is in competition for government funds, not only with manned space flight, and with various programs of real science, but also with many other things that we need government to do. We had better not try to defend science by attacking spending on these other needs. We would lose, and would deserve to…
If early humans had been vegans we might all still be living in caves, Swedish researchers suggested in an article recently published in the journal PLoS ONE. When a mother eats meat, her breast-fed child’s brain grows faster and she is able to wean the child at an earlier age, allowing her to have more…
Previous attempts to reform our education system in America have only piled more money on the heap of a broken system. We need transformative changes, not additive ones.There are three big culprits in American education policy that are crippling the ability of our schools to respond to today’s challenges: 1. Our policy of “buying reform”…
Retractions of papers published in scientific journals are rising at an alarming rate, according to Dr. Ferric C. Fang a professor at the University of Washington School of Medicine and editor in chief of the journal Infection and Immunity, but that is just a manifestation of a much more profound problem — “a symptom of…
The impact of climate change on corn-price volatility outweighs movements caused by energy market policies and oil prices, according to research published in the journal Nature Climate Change. “U.S. corn-price volatility exhibits higher sensitivity to near-term climate change than to energy policy influences or agriculture-energy market integration,” researchers Noah S. Diffenbaugh, Thomas W. Hertel, Martin…