What is Ozone? Timeline of Stratospheric Ozone Depletion.
This website documents extensive observations, analysis, and discussion of the distribution of ozone, the locations and times of ozone depletion, the relationships of ozone concentrations to ozone depleting substances, and the implications for global climate change. It also discusses issues related to greenhouse gases and the energy contained in radiation.
The depletion of the ozone (O3) layer is negatively affecting our ecosystem, by way of global warming and climate change. Some of the benefits of the O3 layer in the stratosphere (outer layer of the Earth's atmosphere) are: that it provides us with blue skies; it protects man and vegetation from the harmful ultraviolet (UV) rays of the sun, and traps the proper amount of heat within the Earth.
Ozone Layer Depletion. Main Issue; What We Do; Results; Looking Ahead; Main Issue. The ozone layer is mainly found in the lower portion of the stratosphere, about 20 to 30 km (12 to 19 miles) above the earth, though the thickness varies seasonally and geographically. The ozone layer protects living things from harmful ultraviolet rays from the sun; without the protection of the ozone layer.
Ozone (O 3) is a stratospheric layer that plays important role in providing support to humans for their survival. It is an essential factor for many global, biological and environmental phenomena.
Ozone depletion - Ozone depletion - Ozone layer recovery: The recognition of the dangers presented by chlorine and bromine to the ozone layer spawned an international effort to restrict the production and the use of CFCs and other halocarbons. The 1987 Montreal Protocol on Substances That Deplete the Ozone Layer began the phaseout of CFCs in 1993 and sought to achieve a 50 percent reduction in.
The ozone layer protects Earth from dangerous UV radiation (Fig. 7)—which can cause mutations. In humans, a depleted ozone layer would likely mean high- er rates of skin cancer, cataracts, and immune system problems. Further, an in-crease in UV radiation could affect plants and marine ecosystems in unpredictable ways—which could, in turn, trigger other ecological changes. Because it seemed.
Ozone depletion consists of two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone around Earth's polar regions. The latter phenomenon is referred to as the ozone hole.There are also springtime polar tropospheric ozone depletion.