When asked what has surprised them most during their careers investigating lead poisoning in the United States and beyond, experts at the AAAS annual meeting echoed the same sentiment: the misconception that we’ve gotten rid of it.
While efforts to reduce the blood lead levels in children in the United States have been largely successful with the elimination of leaded gasoline and restrictions on lead paint, lead pollution internationally remains a pressing issue.
Researchers have identified a system of three genes that are responsible for hybrid sterility in rice, or the inability of many hybrid rice species to pass their genes on to the next generation. Their findings suggest one way that hybrid sterility is maintained across rice species, and they might also lead to the genetic improvement of rice as a food stock.
Many different species of plants and animals have been moving higher in elevation and farther away from the equator to escape the Earth’s warming climate. Now, new research shows that this phenomenon is occurring at much faster rates than previously realized.