Why are there large quantities of the un-natural (Man Made) CFCs in Antarctica?

Similar documents
Atmosphere and Climate Change Section 1. Chapter 13 Atmosphere and Climate Change Section 1: Climate and Climate Change DAY ONE

Human Impact on the Environment: Part I

Earth's Atmosphere. Atmospheric Layers. Atmospheric Layers

Environmental Science 101 Air Resources. Fall Learning Objectives: Reading Assignment:

HUMAN IMPACT on the BIOSPHERE part 4

HUMAN IMPACT ON THE ENVIRONMENT 02 OCTOBER 2013

How is the atmosphere different from outer space? a mixture of gases that surrounds the Earth

Name: Class: Date: 6. Most air pollution is produced by a. thermal inversions. c. ozone layer depletion. b. fuel burning. d. volcanic eruptions.

Topic # 13 (cont.) OZONE DEPLETION IN THE STRATOSPHERE Part III

Percentages of Gases in the Atmosphere

6-4 Charting a Course for the Future Slide 2 of 30

ATM S 211 Final Examination June 4, 2007

6-4 Charting a Course for the Future Slide 1 of 30

AST 105 Intro Astronomy The Solar System

Chapter 19 Global Change. Wednesday, April 18, 18

Directed Reading. Section: Global Change. than in the rest of the United States. b. In the United States and Canada, many lakes are dying as their ph

2 Atmospheric Heating

TROPICS: insolation high year round, high sun angle and ~ constant duration

I. Pollutants A. Harmful substances the enter the environment

Air Pollution Chapter 21. Atmosphere as a Resource

9th Period Environmental Science Chapter 15: The Atmosphere

Section 4 The Air We Breathe

Greenhouse Effect. How we stay warm

Global Ocean and Atmosphere Temperature Trends Compared

Lecture 29 Air Pollution. Air Pollution. Clean Boundary Layer. Clean Boundary Layer

3/4/2014. Air Pollution. Chapter 15 Air Pollution and Stratospheric Ozone Depletion. Major Air Pollutants. Primary Pollutants

Threats to Our Atmosphere

ATOC 4800: Policy Implications of Climate ATOC 5000/ENVS5830: Critical Issues in Climate and the Environment Class Web Page:

Global Climatic Change. GEOG/ENST 2331 Lecture 22 Ahrens: Chapter 16

Chapter 4: The Global Energy System

Overview of Climate Science

Chapter 22 How Humans Influence the Living World

Energy, Greenhouse Gases and the Carbon Cycle

Chapter 17: Atmospheric Science and Air Pollution I. Central Case: The 1952 Killer Smog of London

What is climate change? - BBC News

Human Impact. Chapter 5

Stratospheric Ozone. Science Concepts. Stratospheric Ozone. Ozone Chemistry Creation Process Destruction Processes Equilibrium.

The ozone hole leaves a lasting impression on southern climate

Lecture 11: Global Warming. Human Acticities. Natural Climate Changes. Global Warming: Natural or Man-Made CO 2 CH 4

1 Characteristics of the Atmosphere

4/12. There is so much pollution in the air now that if it weren t for our lungs there d be no place to put it all. Robert Orben

HUMAN IMPACT on the BIOSPHERE Chapter 6-4. Charting a course for the Future

Chapter 18 Chemistry of the Environment

Lovelock detects CCl 3. F (CFC-11) in the atmosphere of both hemispheres Rowland & Molina's Nature paper. CFC + hυ Cl + CCl 2

GLOBAL WARMING COMPUTER LAB

Explain how human activities can impact chemical cycles. Explain how pollution can affect food chains.

Atmospheric Chemistry (Option 1B)

Green Chemistry Five ways in which the Chemical industry can become Greener Changing to renewable sources Use of alternatives to hazardous chemicals

Chapter 15 Air Pollution and Stratospheric Ozone Depletion

National Revision- Global Issues- Climate Change

FAQ - OZONE DAY. Overview:

Climate Change not New

Chapter 19 Global Change

Science 30 Unit B Chemistry and the Environment

NOTES 12.4: HUMAN ISSUES, IMPACTS, & SOLUTIONS. Pages ,

Global Warming. By William K. Tong. Adjunct Faculty, Earth Science Oakton Community College

Chapter 11: Atmosphere

Air Pollution. Asian Brown Cloud. Developed Countries have reduced emissions recently

Chapter 19 Global Change

4. Stratospheric ozone depletion

The Earth s Atmosphere-I. GEOL 1350: Introduction To Meteorology

Atmosphere. Earth s Atmosphere

Global Insolation Budget. Solar Radiation. Greenhouse Gases. Air: Climate and Pollution. Weather, Climate, Winds, Rain

Pollution. Pollution refers any substance introduced into the environment that has harmful or poisonous effects

Resources that can be replaced, given a sufficient amount of time. Nonrenewable Resources: Food, oxygen, wood, wind, water.

Session 14 Unit VI CLIMATIC CHANGE AND GLOBAL WARMING

Human Environment & Interaction Around the World

Climate Change and Ozone Loss

4.4 CLIMATE CHANGE. Concentrations of gases in the atmosphere affect climates experiences at the Earth s surface

Overview of Chapter 19

What factors can cause long-term climate change? 2014 Pearson Education, Inc.

Acid deposition accumulation of potential acid-forming particles on a surface acids can result from natural causes

Carbon Dioxide and Global Warming Case Study

Chapter 20 Air Pollution

1.INTRODUCTION INTRODUCTION:-

G-5 ACTIVITY ON VOLCANISM & CLIMATE THE ANSWERS!

There has been an increase in the average global temperature in the last 150 years. Explain the human factors causing global warming.

Depleting The Ozone Layer. environmentalists have extensively studied the effects of the depletion of the ozone layer for the

Chapter 15. Atmosphere Notes

Scientific Foundation of Climate Change. Human Responsibility for Climate Change

Lecture 17. Air Pollution. Lecture 17

Climate Change and Ozone Depletion Notes. Chapter 20

Do Now pg 89. List 3 ways you think air pollution affects human health

Grade 10 Academic Science Climate Change Unit Test

SAP-2010-FAQs-update.pdf

FINAL EXAM STUDYING JUMP START REVIEW. Some review from earlier in the semester and some Q s on more recent topics...

NOTES: CH 5 Populations

Questions 1 4 refer to the diagram of the earth s atmosphere shown above. 3. The section of the atmosphere responsible for our daily weather.

How things work college course/cumulative global warming exam/testbank

The instrumental record goes back to about A few areas of the globe have not warmed in recent decades, mainly over some parts of the Southern

Name SID Number Final VERSION B

Name SID Number Final VERSION B

Environmental Science Std.-9 Chp.7 Atmosphere and Climate

ENVIRONMENTAL AWARENESS

GLOBAL ENVIRONMENTAL PROBLEMS

Lecture Presentation. Chapter 18. Chemistry of the Environment. James F. Kirby Quinnipiac University Hamden, CT Pearson Education, Inc.

High School Climate Science Curriculum Course learning goals. October 2011

Name SID Number Final VERSION A

Climate Change Vocabulary Global Challenges for the 21 st Century Tony Del Vecchio, M.Ed. Atmosphere

Earth s Dynamic Climate

Transcription:

Ozone Depletion and Climate Change Why are there large quantities of the un-natural (Man Made) CFCs in Antarctica? In a recent (last August 2016) BBC documentary on the Antarctic weather changes, it has been just mentioned and during the report that there are large quantities of CFCs in Antarctica! Now the question: what are these large quantities of the un-natural (Man Made) CFCs, Ozone layers destructing chemicals doing in Antarctica? And the cause of the start of thinning the ozone layers above Antarctica and the gradual drastic climate changes since early 1970s. Now this small information about large quantities of CFCs in Antarctica and after 44 years has been revealed and fits with the piece of article which I have read in 1972 stating the following: That in early 1960s some countries have conducted several top secret strategic military experiments on drilling a hole in the ozone layer by using CFCs and the experiments have been taken place in Antarctica. The military objective of these experiments is to make a hole in the stratosphere s ozone layers on a specific area or region on earth to allow the lethal high energy UV/cosmic rays to kill silently the inhabitants of that specified target. The large quantities of CFCs used in these military experiments have remained and contaminated the Antarctica. CFCs are very stable organic compounds and they do not get easily destroyed and especially at the cold Antarctic conditions. The CFCs reaches the stratosphere which it contains about 90% of ozone, the earth protecting shield. There the CFCs will break down by high energy cosmic and UV radiations to liberate a chlorine atom and this starts to break down the ozone molecules. This chlorine atom will react with ozone to take one oxygen atom from an ozone molecule and liberate a molecule of oxygen and chlorine monoxide. The chlorine monoxide will react with another ozone molecule to form 2 molecules of oxygen and liberate back the chlorine, as the equation below. This single Cl. + O 3 ClO + O 2 (step 1) ClO + O 3 Cl. + 2O 2 (step 2) chlorine atom has ozone destroying cycle and it will keep repeating this reaction and destroying other ozone molecules in thousands. This is resulting in the

thinning of ozone layers and allowing these lethal radiations to enter our planet and gradually causing the climate changes and destructions. The warming of the Southern Hemisphere during the start of the spring sunrise season (September to November each year) will liberate the CFCs contaminated Antarctic ice to the atmosphere above it. As strong westerly winds (storms) start to circulate around the continent and create an atmospheric container. Within this polar vortex, the freed CFCs and the ones in the ice crystals will be lifted and gradually reach the high-altitude polar stratospheric clouds. Over 50 % of the lower stratospheric ozone is destroyed during the Antarctic spring. This is why the ozone hole (depletion) is mainly concentrated over Antarctica. And it is persisting for a greater part of the year and getting larger every year and much larger than predicted. Therefore as far as these large quantities of CFCs remains in Antarctica, there will be no considerable recovery or healing of the Antarctic ozone. The discovery of CFCs environmental impact began in 1970 and traces of it found in air everywhere but with much higher concentration in Antarctic s atmosphere. Then scientists have researched and investigated and proven that CFCs are affecting the atmosphere ten miles above Earth s surface and destroy our protective ozone layers. They discovered a gigantic hole in the ozone layer above Antarctica a region of depleted ozone the size of the United States. Their ozone reading showed a dramatic dip around 40% and the decline had really started back in early 1970s. Direct measurements made by scientists through the Antarctic ozone hole. Just as predicted, ozone was low where chlorine monoxide was high, strengthening the link between chlorine and ozone depletion. Since 1970 scientists and researchers were looking for traces of CFCs and other halogenated hydrocarbons in the atmosphere, troposphere and eventually the stratosphere above Antarctica but not in the ice, soil or the water there. This is especially when no data has been published or made public by any researcher on the existence of large quantities of halogenated hydrocarbons in the ice, soil or the water in Antarctica. The scientists have been inspired by a flurry of experiments and atmospheric studies and built atmospheric models. They came up with various hypothesis and proposals on the source of CFCs in air. Their hypothesis, that CFCs are happened to be concentrated in the air above

Antarctica with the ice particles goes into the polar clouds (ice clouds). This is providing a solid surface on which reactions could occur of ozone from CFCs much more efficient and proving the extent of ozone destruction in Antarctica. They have always proposed that CFCs are accumulated in Antarctic s atmosphere carried by storms from around the world. And their source must come from aerosol spray propellants, refrigerants, air conditioning and CFCs used in various industrial applications and made their way to the South Pole. But what about the main source of large quantities of CFCs and other halogenated compounds used in secret experiments in Antarctica and still remains there. Some of these South Pole stratospheric clouds carrying CFCs could travel the earth and create other ozone holes at different concentrations and affect atmospheric circulation. This is like the existing much smaller ozone holes over Tibet and Arctic-central Siberia and it could affect parts of Scandinavia and Eastern Europe. The summer storm clouds in the United States, and thus may be destroying ozone there as well. The ozone hole has influenced atmospheric circulation all the way to Australia, New Zealand, Chile, South Africa and the tropics. It has increased rainfall at low, subtropical latitudes in the Southern Hemisphere. The various amounts of these high energy radiations entering the earth atmosphere through the thinning of the ozone layers and the increase of oxygen molecules could have a direct influence over climate change and hence the changing of the period and timing of the 4 seasons. And it effects the growth or the death of plants, microorganisms, animals and human and the balance of the elements in air, water and soil. Also it could affect the temperatures and the levels of water on earth; it could cause draught in some areas and heavy rain falls and floods on other areas on earth. It could cause the melt of ice in some areas and heavy snow falls on other areas. All these could affect human, animal and plants growth, behaviour and health. The world community has come up with protocols and put a ban and the gradual face out of the use of CFCs and other halogenated hydrocarbons. Then the attention and the campaigns have been shifted and concentrated on the control and the reduction of carbon emissions from the industrial usage of fossil fuels (petroleum and coal). This is to reduce the greenhouse effect and the earth rising temperature. They put a tax on the amount of these emissions and called it Carbon Tax. If the concern comes mainly from the rising of earth

temperatures caused by burning of fossil fuels as widely publicised and presented recently at the Paris and Marrakesh conferences on Climate Change. Then, how can we explain the cooling of many parts of earth? That some areas are getting much cooler than normal and the unusual fall of snow in regions not known to see snow and especially within the past three decades. For example and in the past few years there are heavy snow falls in the Arabian deserts and other parts in the region and the unusual low temperatures, which it was not experienced before. These high energy radiations penetrating our planet s thinned ozone layers could be directly responsible on the unusual large and repeated forest fires around the globe. The unusual heavy rain and floods have been hitting many parts of the planet. These radiations could also be responsible on the expansion of the African deserts and especially in the north with longer periods of draught. Also the observed gradual changes and destructions of the nature of the coral reefs in Australia. The increased phenomena of El Niño (warm) and La Niña (cold) as complex weather patterns resulting from variations in ocean temperatures in the Equatorial Pacific. The thinning of earth ozone layers, the penetration of high energy radiations and the increase of oxygen levels caused by the unnatural CFCs could be the main factors influencing the climate changes on earth than the burning of natural fossil fuels. Recommendations 1- To establish independent scientific teams supervised by independent observers and from different countries to go to Antarctica and measure the quantities of CFCs and other halogenated hydrocarbons in the ice, soil, water and air there, Especially at the areas where there are various well established international research centres. 2- To check if there are any CFCs contaminated animals and their habitats in Antarctica. 3- To come up with well programmed and planed methods and procedures on how to remove safely these unnatural halogenated hydrocarbons from Antarctica s contaminated areas. 4- The countries took part in these secret military experiments, now is the time for them to come up and establish collaboration with these mentioned

independent bodies to locate the areas where their experiments have been taken place. And to reveal the types and the quantities of CFCs and other halogenated hydrocarbons and the periods were used. Dr. Kamal Ketuly Associate Professor Chemistry, M.Appl.Sc. & Ph.D. (Glasgow) Email: kketuly@hotmail.com