3 Times Environmental Action Worked in the Past

Updated on July 5, 2019
harrynielsen profile image

Science has always fascinated me. This includes not only the ecological sciences, which I studied in school, but other endeavors, as well.

During the 30s, dust storms made life on the Great Plains difficult, to say the least.
During the 30s, dust storms made life on the Great Plains difficult, to say the least. | Source

In the past, environmental issues have risen and presented their ominous scenarios to whoever is unfortunate enough to be at ground zero. For the most part, each problem has gone away through some sort of concerted effort by a large number of unrelated people. Environmental action helped mitigate the American Dust Bowl, smog in London, and damage to the ozone layer of the atmosphere. By looking at these three examples that have occurred in the last 100 years or so, we can better deal with the global environmental challenges that presently challenge us.

When done correctly, modern-day contour plowing looks something like this and will help reduce soil loss through erosion.
When done correctly, modern-day contour plowing looks something like this and will help reduce soil loss through erosion.

Dust Bowl Days

The Dust Bowl lasted from approximately 1930 to 1936, yet in those few short years, drought swept across the West, creating huge clouds of dust (known as dust storms), which traveled all the way across the country, often reaching the Atlantic seaboard.

During the height of the dust storms, residents of New York City were able to tell from what part of the country the tempest originated, just by observing the color of the dust clouds.

Today, Hugh Hammond Bennett is highly regarded as the father of soil conservation
Today, Hugh Hammond Bennett is highly regarded as the father of soil conservation

Help Is On the Way

When FDR took the office of the presidency in 1933, he brought with him a soil scientist, who would play an instrumental role in ending the environmental crisis known as the Dust Bowl. One of President Roosevelt's first acts was to create the Soil Conversation Service and as the organization's director, he appointed Hugh Hammond Bennett, who before 1933 was a leading soil scientist at the Department of Agriculture.

Under Bennett's direction, the federal agency would go on to play a leading roll in bringing about much-needed change in the way that farmers plowed their fields. Most important was contour plowing, an agricultural technique where farmers cut their plow lines perpendicular to the slope of the land. The results were gradual, but by 1940 the devastating dust storms had dissipated and agricultural production was returning to normal in the most-affected places. Also important in aiding the situation was the fact that the drought in the Great Plains had ceased and rain had returned to the area.

Nelson's Column in London during the Great Smog of 1952
Nelson's Column in London during the Great Smog of 1952 | Source

The Dreaded London Fog

The British Isles, and most particularly the streets and alleys of London Town, have always been noted for their large number of foggy days. The common atmospheric conditions have over the years created a sometimes dreary and moody outdoor environment that permeates British life and also abounds in its literature and movies. However, in the post-WWII years, the "thick-as-pea-soup" mist, took on a sinister life of its own, when it killed thousands of people due to the high concentration of toxic substances within the dense, cloudy atmosphere.

The Great Smog of 1952

The Great Smog of 1952 only lasted for five days (Dec. 5–Dec. 9), but during that brief time frame, the deadly air hospitalized over a 150,000 people, with death tolls possibly exceeding 12,000. Reports of fog so thick that you could not see your feet were common, with the bizarre result that a few deaths were caused by people wandering blindly into the Thames River and drowning.

Air pollution has been with us for many years and still is a major problem in large urban areas like Mexico City and Shanghai.
Air pollution has been with us for many years and still is a major problem in large urban areas like Mexico City and Shanghai. | Source

The Cause and Cure

The principal culprit in the London Smog was the gases released from coal fires, which were a common provider of winter indoor heat in Great Britain. Today, 21st century scientists believe that during the London killer smog, sulfur dioxide and nitrogen dioxide, both by-products of the coal-burning process, mixed together to form a highly-acidic sulfuric acid.

In the wake of the killer smog, the British government went on to pass some of the first air quality control laws on the planet. The process took a while, but in 1956, the first air quality control legislation on the planet was passed by the Parliament. Due to continuing coal burning issues, the Clean Air Act of 1956 was revised in 1968. Since 1968, the British have added additional air pollution laws to deal with automobile exhaust.

Air conditioners like these pictures here were once pollutin the Ozone layer
Air conditioners like these pictures here were once pollutin the Ozone layer | Source

The Ozone Layer

Normally, the gaseous element, oxygen, bonds with itself to form O2, which in layman's terms, consists of two atoms of oxygen united together. O2 is common in the atmosphere, for it is the life-giving oxygen that life on earth, including mankind, is so dependent upon.

Higher up in the atmosphere, where the various gaseous elements exist in lesser concentrations, the sun's rays first encounter this mixture full force. The ultraviolet portion of sunlight is important here, because when these rays strike the oxygen molecules, they cause the O2 configuration to convert to O3. Called ozone, this O3 layer is instrumental in protecting our planet from the same dangerous ultraviolet radiation, which created the unusual molecules in the first place.

Diagram of the Ozone Layer
Diagram of the Ozone Layer

A Dire Situation

Somewhere towards the end of the twentieth century, atmospheric scientists began to notice that something strange was happening to earth's atmosphere. Scientific observation seemed to indicate that ultraviolet rays from the sun were penetrating the atmosphere at an alarming rate. The result here was an increase in skin cancer, especially in the lower latitudes of the Southern Hemisphere.

Further examination did not produce good news, for the scientists came to the startling conclusion that the ozone layer was being depleted at a rapidly increasing rate. More research was required to determine the culprit, fluorocarbons, those complex chemicals so vital to the air conditioning industry and also used in aerosols.

How the Ozone Layer Was Saved

The cure was not easy, for it took an intense international effort to replace just about all of the air conditional coolants on the planet with a safer alternative that did not contain any chlorine or fluoride. Now some 30-plus years later, the scientific community has determined the health of the ozone layer is significantly improving in such a way that skin cancer from ultraviolet radiation had been immensely reduced.

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    © 2019 Harry Nielsen

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