Review of current environmental problems in the media
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28.05.2018
Since ancient times Nature has served Man, being the source of his life. For thousands of years people lived in harmony with environment and it seemed to them that natural riches were unlimited. But with the development of civilization man's interference in nature began to increase.
Large cities with thousands of smoky industrial enterprises appear all over the world today. The by-products of their activity pollute the air we breathe, the water we drink, the land we grow grain and vegetables on.
Every year world industry pollutes the atmosphere with about 1000 million tons of dust and other harmful substances. Many cities suffer from smog. Vast forests are cut and burn in fire. Their disappearance upsets the oxygen balance. As a result some rare species of animals, birds, fish and plants disappear forever, a number of rivers and lakes dry up.
The pollution of air and the world's ocean, destruction of the ozone layer is the result of man's careless interaction with nature, a sign of the ecological crises.Review of current environmental problems in the media
Ecology.docx
Since ancient times Nature has served Man, being the source of his life. For
thousands of years people lived in harmony with environment and it seemed to
them that natural riches were unlimited. But with the development of
civilization man's interference in nature began to increase.
Large cities with thousands of smoky industrial enterprises appear all over the
world today. The byproducts of their activity pollute the air we breathe, the
water we drink, the land we grow grain and vegetables on.
Every year world industry pollutes the atmosphere with about 1000 million
tons of dust and other harmful substances. Many cities suffer from smog. Vast
forests are cut and burn in fire. Their disappearance upsets the oxygen balance.
As a result some rare species of animals, birds, fish and plants disappear forever,
a number of rivers and lakes dry up.
The pollution of air and the world's ocean, destruction of the ozone layer is
the result of man's careless interaction with nature, a sign of the ecological
crises.
The most horrible ecological disaster befell Ukraine and its people after the
Chernobyl tragedy in April 1986. About 18 percent of the territory of Byelarus
were also polluted with radioactive substances. A great damage has been done
to the agriculture, forests and people's health. The consequences of this
explosion at the atomic powerstation are tragic for the Ukrainian, Byelorussian
and other nations.
Global warming has become an undisputed fact about our current livelihoods; our
planet is warming up and we are definitely part of the problem. All across the
world, people are facing a wealth of new and challenging environmental problems
every day. Some of them are small and only affect a few ecosystems, but others are
drastically changing the landscape of what we already know.
1. Pollution: Pollution of air, water and soil require millions of years to recoup.
Industry and motor vehicle exhaust are the number one pollutants. Heavy metals,
nitrates and plastic are toxins responsible for pollution. While water pollution is
caused by oil spill, acid rain, urban runoff; air pollution is caused by various gases
and toxins released by industries and factories and combustion of fossil fuels; soil
pollution is majorly caused by industrial waste that deprives soil from essential
nutrients. 2. Global Warming: Climate changes like global warming is the result of human
practices like emission of Greenhouse gases. Global warming leads to rising
temperatures of the oceans and the earth’ surface causing melting of polar ice caps,
rise in sea levels and also unnatural patterns of precipitation such as flash floods,
excessive snow or desertification.
3. Overpopulation: The population of the planet is reaching unsustainable levels
as it faces shortage of resources like water, fuel and food. Population explosion in
less developed and developing countries is straining the already scarce resources.
Intensive agriculture practiced to produce food damages the environment through
use of chemical fertilizer, pesticides and insecticides. Overpopulation is one of the
crucial current environmental problem.
4. Waste Disposal: The over consumption of resources and creation of plastics are
creating a global crisis of waste disposal. Developed countries are notorious for
producing an excessive amount of waste or garbage and dumping their waste in the
oceans and, less developed countries. Nuclear waste disposal has tremendous
health hazards associated with it. Plastic, fast food, packaging and cheap electronic
wastes threaten the well being of humans. Waste disposal is one of urgent current
environmental problem.
5. Climate Change: Climate change is yet another environmental problem that has
surfaced in last couple of decades. It occurs due to rise in global warming which
occurs due to increase in temperature of atmosphere by burning of fossil fuels and
release of harmful gases by industries. Climate change has various harmful effects
but not limited to melting of polar ice, change in seasons, occurrence of new
diseases, frequent occurrence of floods and change in overall weather scenario.
6. Loss of Biodiversity: Human activity is leading to the extinction of species and
habitats and and loss of biodiversity. Eco systems, which took millions of years to
perfect, are in danger when any species population is decimating. Balance of
natural processes like pollination is crucial to the survival of the ecosystem and human activity threatens the same. Another example is the destruction of coral
reefs in the various oceans, which support the rich marine life.
7. Deforestation: Our forests are natural sinks of carbon dioxide and produce fresh
oxygen as well as helps in regulating temperature and rainfall. At present forests
cover 30% of the land but every year tree cover is lost amounting to the country of
Panama due to growing population demand for more food, shelter and cloth.
Deforestation simply means clearing of green cover and make that land available
for residential, industrial or commercial purpose.
8. Ozone Layer Depletion: The ozone layer is an invisible layer of protection
around the planet that protects us from the sun’s harmful rays. Depletion of the
crucial Ozone layer of the atmosphere is attributed to pollution caused by Chlorine
and Bromide found in Chlorofloro carbons (CFC’s). Once these toxic gases reach
the upper atmosphere, they cause a hole in the ozone layer, the biggest of which is
above the Antarctic. The CFC’s are banned in many industries and consumer
products. Ozone layer is valuable because it prevents harmful UV radiation from
reaching the earth. This is one of the most important current environmental
problem.
9. Acid Rain: Acid rain occurs due to the presence of certain pollutants in the
atmosphere. Acid rain can be caused due to combustion of fossil fuels or erupting
volcanoes or rotting vegetation which release sulfur dioxide and nitrogen oxides
into the atmosphere. Acid rain is a known environmental problem that can have
serious effect on human health, wildlife and aquatic species.
10. Water Pollution: Clean drinking water is becoming a rare commodity. Water
is becoming an economic and political issue as the human population fights for this
resource. One of the options suggested is using the process of desalinization.
Industrial development is filling our rivers seas and oceans with toxic pollutants
which are a major threat to human health. 11: Public Health Issues: The current environmental problems pose a lot of risk
to health of humans, and animals. Dirty water is the biggest health risk of the
world and poses threat to the quality of life and public health. Runoff to rivers
carries along toxins, chemicals and disease carrying organisms. Pollutants cause
respiratory disease like Asthma and cardiacvascular problems. High temperatures
encourage the spread of infectious diseases like Dengue.
12. Genetic Engineering: Genetic modification of food using biotechnology is
called genetic engineering. Genetic modification of food results in increased toxins
and diseases as genes from an allergic plant can transfer to target plant. Genetically
modified crops can cause serious environmental problems as an engineered gene
may prove toxic to wildlife. Another drawback is that increased use of toxins to
make insect resistant plant can cause resultant organisms to become resistant to
antibiotics.
The need for change in our daily lives and the movements of our government is
growing. Because so many different factors come into play; voting, governmental
issues, the desire to stick to routine, many people don’t consider that what they do
will affect future generations.
Environmental protection is of a universal concern. That is why serious
measures to create a system of ecological security should be taken.
Some progress has been already made in this direction. As many as 159
countries — members of the UNO — have set up environmental protection
agencies. Numerous conferences have been held by these agencies to discuss
problems facing ecologically poor regions including the Aral Sea, the South
Urals, Kuzbass, Donbass, Semipalatinsk and Chernobyl.
An international environmental research centre has been set up on Lake
Baikal. The international organisation Greenpeace is also doing much to
preserve the environment.
But these are only the initial steps and they must be carried onward to protect
nature, to save life on the planet not only for the sake of the present but also for
the future generations.
Review of current environmental problems in the media
Review of current environmental problems in the media
Review of current environmental problems in the media
Review of current environmental problems in the media
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