IQ scores are on a decline, reversing a trend that saw scores rising at a steady rate during the 20th century, according to a new study.
Researchers from the Ragnar Frisch Centre for Economic Research in Norway studied the IQ scores of about 730,000 Norwegian men born between 1962 and 1991. They found that scores grew by nearly three percentage points every decade for people born between 1962 and 1975. But among those born after 1975, scores fell.
The cause of the IQ decline is due to environmental factors, and not genetics, said Ole Rogeburg, a senior research fellow at Ragnar Frisch Centre and co-author of the study on IQ scores, published in the Proceedings of the National Academy of Sciences journal.
Continue reading “IQ Scores Are Falling Due to Environmental Factors, Study Finds – Mahita Gajanan”
olluted cities, has the highest rate of respiratory diseases of any country. A leading lung specialist, Arvind Kumar, says the cancer patients he sees Delhi are younger, more often female and more likely to be non smokers than those outside the city.
Children are the most vulnerable: a 2015 study concluded about half Delhi’s 4.4m schoolchildren had stunted lung development and would never completely recover.
But pressure on local and central governments to act usually clears along with the air in February when warmer temperatures help to thin the smog.
Continue reading “Delhi’s air pollution is now so bad it is literally off the chart – Michael Safi”
The future of solar power has looked increasingly bright in recent years thanks to the plummeting cost of silicon solar panels and a global push for clean energy sources to address climate change. In the most optimistic scenarios for the power source, solar generation will increase 16-fold between 2016 and 2040, according to data from the International Energy Agency.
But now new research into a class of materials known as perovskites underway in U.S. government labs and other facilities around the world promises to accelerate rapidly even the most optimistic projections for solar deployment. If they make it from the lab to commercial use perovskites could dramatically change the market for the renewable energy source offering potential for panels to capture energy virtually any surface facing the sun.
Continue reading “Inside the New Technology That Could Transform the Solar Power Industry – Justin Worland”