The Clean Air Act, introduced in 1963, empowers the federal government to control air pollution. It has cleaned up the air we breathe, and controlled acid rain and ozone depletion. In 2007, the Bush Administration began using it to regulate U.S. emissions that contribute to climate change. What is the future of the Clean Air Act under the Trump Administration? VOA's Kevin Enochs reports.
Data about snow is hard to gather from space. NASA weather scientists report that currently, worldwide estimates of the water stored in snow may be off by 30 to 50 percent. That’s why NASA’s launching an ambitious project to create a new “snow satellite.” The first steps start not in satellites, but in airplanes and on snowy mountains. From Peterson Air Force Base in Colorado, Shelley Schlender reports.
The U.S. was declared measles-free 15 years ago, thanks to the development of a reliable vaccine against that virus, but many American doctors now are worried that could change, because so many parents are opposed to having their children inoculated against disease. VOA's Carol Pearson has more.
Leprosy, despite its horrible reputation, is a very curable disease. But there are still more than 200,000 cases reported every year, most of them in India, Indonesia, Brazil, and parts of Africa. To fully understand the disease, doctors and archaeologists are examining the skeletons of people who had the disease hundreds of years ago. VOA's Kevin Enochs reports.