by Daniel Clark | Dec 30, 2020
As explained by the National Aeronautics and Space Administration, ozone is a gas made up of three oxygen atoms (O3) that occurs naturally in the upper atmosphere — called the stratosphere and at 10-50 kilometres altitude. In the lower atmosphere (the...
by Daniel Clark | Dec 30, 2020
Nuclear weapons testing began in 1945 and nearly 2,000 tests have subsequently been undertaken. International Day against Nuclear Tests is to learn about the effects of nuclear weapon test explosions or any other nuclear explosions and the need for their cessation as...
by Daniel Clark | Dec 29, 2020
Following the devastation of the Second World War, the United Nations was established to save succeeding generations from the scourge of war, and to achieve international cooperation in solving international problems, including by promoting and encouraging respect for...