Carbon tetrachloride (CCl4), once commonly used as a cleaning agent, is an ozone-depleting chemical. Despite a worldwide ban, a new study reports that CCl4 emission rates are still 30 to 100 times ...
The Earth's atmosphere contains an unexpectedly large amount of an ozone-depleting compound banned over 25 years ago. Nasa scientists have admitted they are baffled by the discovery of Carbon ...
Washington: In a significant revelation, NASA researchers have shown that the earth's atmosphere contains an unexpectedly large amount of an ozone-depleting compound from an unknown source, decades ...