even ozone, to form a wide variety of toxic products, some of which may cause biological mutations. Examples of these chemicals include the nitrate radical, nitroarenes, and nitrosamines. Visibility Impairment - Nitrate particles and nitrogen dioxide can block the transmission
In the U.S., the clocks will be turned back one hour on Nov. 2, at 2:00 a.m. local time, so trick-or-treaters will hang on to a little more light on Halloween. (Mark your calendar, we âspring aheadâ an hour on the second Sunday in March.). If you live in Europe, you will have already moved your clock back to Standard Time on Sunday, Oct. 26, in the wee hours of the morning (it varies by country), in Asia, most countries do not observe Daylight Saving.
Photos of the week. Clocks will moved forward by one hour Sunday, March 8, 2015 for Daylight Saving Time.Jeff J. Mitchell/Getty Images. Time to spring forward and lose a bit of sleep. Daylight Saving Time (DST) goes into effect Sunday, when our clocks will jump forward an hour at 2 a.m. Every year, DST begins on the second Sunday of March and ends on the first Sunday of November.