Human health and ecological consequences of ozone depletion.

Hello Harold,
We have some archival data but believe it is likely all false information. There is no doubt the UV is much higher as it is quite literally burning everything to a crisp here. All available study shows clearly what the effect of massive atmospheric aerosol spraying is on the atmosphere/ozone layer, thats exactly what we appear to have. In addition to the extremely high meter readings, virtually all known signs of radically excessive UV is showing up here on the ground.
We can say for certain that the ratio of UVA to UVB has gone up to the degree we have cited, all indications are that this is an across the board increase which would make our math very conservative overall,
Hope this helps.
Dane

The ozone layer, depletion and uv radiation - eco-action

Learn more about the process, causes, and effects of ozone layer depletion.

Ozone layer depletion first captured the ..

The graph above shows total ozone and stratospheric temperatures over the Arctic since 1979. Changes in ozone amounts are closely linked to temperature, with colder temperatures resulting in more polar stratospheric clouds and lower ozone levels. Atmospheric motions drive the year-to-year temperature changes. The Arctic stratosphere cooled slightly since 1979, but scientists are currently unsure of the cause. Future NASA missions, starting with the Aura satellite, will improve our understanding of the links between global climate change and ozone chemistry. (Graph based on data provided by Paul Newman, NASA GSFC)

Ozone depletion is listed as one of the ..

Stratospheric cooling may have been taking place over recent decades for a number of reasons. One reason may be that the presence of ozone itself generates heat, and ozone depletion cools the stratosphere. Another contributing factor to the cooling may be that rising amounts of greenhouse gases in the lower atmosphere (troposphere) are retaining heat that would normally warm the stratosphere. However, scientists hold varying degrees of conviction about the nature of the link between tropospheric warming and stratospheric cooling. "The warming of the troposphere and its potential influence upon the stratospheric circulation is an important consideration," points out Ramaswamy, "though the quantitative linkages are uncertain. It is possible that they may be interdependent only in a tenuous manner."

Let us take a look at some of the causes and effects of ozone layer depletion.

physiological and developmental processes of plants are affected.

UVB is a kind of ultraviolet light from the sun (and sun lamps) that has . UVB is particularly effective at damaging DNA. It is a cause of melanoma and other types of skin cancer. It has also been linked to damage to some materials, crops, and marine organisms. The protects the Earth against most UVB coming from the sun. It is always important to protect oneself against UVB, even in the absence of , by wearing hats, sunglasses, and sunscreen. However, these precautions will become more important as ozone depletion worsens. .

ENVIRONMENTAL EFFECTS OF OZONE DEPLETION: …

The Montreal Protocol was signed by 191 countries who have legally binded themselves to stopping the production of ODS. THis has led to most of the countries achieving their goal of completely phasing out the ODs while soem are in the process and almost all the countries will reach this target by the year 2040. The various substances classified as the Ozone Depleting Substances were categorized under different classes and steps were taken to phase them out by assigning deadlines by which time countries should stop the production of these Ozone depleting substances. US and some of thThe various categorizations are given below.

The ozone layer, depletion and uv radiation - eco-action org

The thinning of the ozone at the poles has resulted in more UV radiation reaching the earth' surface causing health hazards such as increase in incidence if cancer related case, cataracts, damage to plants and ocean life. In 1987 the Montreal Protocol was signed between countries to follow regulations on curbing ODS(Ozone Depleting Substances) from being released into the atmospehere. Since then US which was one of the leading countries in ODS susbstances has made a strong effort in completley stopping most of the production of CFC's, CC4(carbontetrachlorides),Hydrofluorocarbons which are the second phase ODS will be phased out by 2030 in US.

NOAA Ozone Webquest- Questions 1-22 - National …

Thinning of the ozone layer is known as ozone layer depletion. It was not until the 1980s, a thinning in the ozone layer was observed. In 1984, the Nobel prize winners, Sherwood Rowland and Mario Molina first observed that the CFC's were thinning the stratospheric ozone layer and this effect was confirmed by subsequent studies by the scieintifc world. In 1985 scientists observed the ozone hole over the Antarctica and ever since steps have been taken to reduce the depletion of the ozone. The thinning of ozone layer is the effect of decades of fossil fuel burning a side effect of rapid industrial development which also added an array of chemical pollutants to the atmosphere. The accumulation of these toxic pollutants has resulted in the thinning. Some of the major pollutants that contributed to this are :