The Boon Or Bane Of Global Warming Environmental Sciences Essay

The Boon Or Bane Of Global trade Environmental Sciences EssayThe stratosphere oz unity (o3) is a product of billions of years of the photochemical process catlalyzed by the solar beam of light . The ozone screen provides a shield for living creatures by pick uping out dangerous ultra- purple rays from sunlight . ultra violet radiation causes sun burn , skin cancer , cataracts and can suppress the immune system . Since 1973 it has been more(prenominal) than and more recognized that the ozone umbrella is being ripped off by the industrial activities of man which release chemicals like chlorofluoro cokes (CFCs)The master(prenominal) problem with the CFCs is their long life in the atmosphere ranging from 75 to 125 years . Also one molecule of CFC can destroy 1,00,000 molecules of ozone .Also rockets which back away off vertically carry ozone killers (Chlorine containing chemicals and newton oxides )Eg The American Delta booster, the authors rate it as a second ozone killer whi ch destroys 8 million tonnes of the earth shield gas during every require-offSOLUTION Coming to the question of stopping launchings of space ships to obviate thinning of the ozone floor , the soviet experts are of the view the problem can be tackled by taking positive locomote like minimizing production of ozone-killing chemicals , banning solid fuel fired rockets , and setting international restrictions for the frequency of launches .A BRITISH ORGANIZATION , Ozone Help (OH ) has come out with a programme to produce ozone in the stop number atmosphere . A solar powered machine is carried to high altitudes by balloons everyplace the antartica , where the ozone depletion has reached its highest .This ozonator is a impartial electronic unit slightly the size of a large microphone and generates a charge of more than 15,000 volts . When this charge is emitted into the air , it produces a significant amount of ozone by converting the oxygen of the air.GLOBAL WARMING ( ascribable t o nursery gases ) The large scale burning of fossil fuels in innovational industry and transport systems increases the concentration of babys room gases such as carbonic back breaker gas , O3 , CH4, CFC3 and N2O in the atmosphere . These greenhouse gases allow suns rays to penetrate the earth climb but retard the return flow of the infra-red radiation. and so the suns light up would be detain near the earths dig up, increase the earths step up temperature all over a point in time of time. Among all the gases CO2 alone plays a major berth in creating greenhouse effect. in that respect are some(prenominal) reasons to be cautious about accepting CO2 as the causative agent if there really is calefacient. This is highlighted by 2 papers published in March 2008. Scafetta and West installed that up to 69% of observed warming is from the sun and Ramanathan and Carmichael show that soot has 60% of the warming power of CO2The fluctuations in the composition of the atmosphere and changes in the temperature over the past twain lakh years can be determined by analysis of tiny air bubbles trapped in scratch that has accreted year by year in arctic and Antarctic. All scenarios on worldwide warming show that significant climate change will occur over a period of time.There are many other issues of environmental concern too like radioactive fallouts , phenomenon of acid rain , large scale deforestation and large scale use of pesticides and chemical fertilizers in modern agriculture and so on .Here are round ways for the prevention of spherical warming Clean or replace filters on your furnace and air conditionerCleaning a dirty air filter can save 350 pounds of carbon dioxide a year..Do not leave appliances on standby call the on/off function on the machine itself. A TV set thats switched on for 3 hours a day (the average time Europeans sp stopping point watching TV) and in standby mode during the be 21 hours uses about 40% of its energy in standby modePl ant a steerA single tree will absorb one ton of carbon dioxide over its lifetime. polish provided by trees can also reduce your air conditioning bill by 10 to 15%.Encourage the switch to renewable energySuccessfully combating global warming requires a national alteration to renewable energy sources such as solar, wind and biomass. These technologies are ready to be deployed more astray but there are regulatory barriers impeding themTry car sharingNeed a car but dont want to buy one? Community car sharing organizations provide entre to a car and your membership fee covers gas, maintenance and insurance.Is Global Warming Bad?The IPCC 2007 Reports Suggest There Will be much Losers than Winners with Warming.The IPCC process includes many un likely scenarios. These worst-case estimates also charter associated impacts, from benign to worst-case. Thus we get the 5% worst impacts that have a 5% chance of happening (a combined 0.25% likelihood) every bit discussed with benign changes that are reasonable to expect. By the time summaries are written, and press releases, only the bad personal effects are presented. This leads to a gross exaggeration of the problems.Global Warming Will Actually Have More Winners then Losers.Throughout the history of human life, the Earths livability has always been better when the climate has been warmer than cooler. Human populations have expanded the most when the Earth warmed and turned greener, whether during the middle ages or during the last 2 decades. Whether it is a fish in the ocean, a shrimp in an aquaculture pond, or a bean on a vine, it will stand up faster when it is warmer, all things being equal. Humans will be quick to give advantage of a warmer climate and to adjust if it gets too warm in an area. More crops grow where it is warm or hot than in frozen ground, and CO2 is a primary food of plants base facts that seem forgotten. Even now, NASA satellites show that the Earth has become 6% greener as the world has wa rmed over the past 20 years(In the laymans approach, ozone depletion and global warming is mostly the same thing . However if you civilize a closer look youll know they are completely different . Although the two are different, activities stellar(a) to one always have some impact on the other )Read more exit Between Ozone Depletion and Global Warming Difference Between Ozone Depletion vs Global Warming http//www.differencebetween.net/science/nature/difference-between-ozone-depletion-and-global-warming/ixzz1AiNbKbQOFacts about climate changeThis chart looks ominous until put into the context that the average temperature for 1901-2000 is 13.9C (57.0F), so we are public lecture about a change from about 13.5 to 14.3 C or 56.3 to 57. 7 F.Not only is Earths surface warming, but the troposphere the lowest level of the atmosphere, where weather occurs is heating up too, U.S. and British meteorologists reportedThe EPA is set to set up greenhouse gases next year for the first time, after the Supreme Court ruled in 2007 that it could sue heat-trapping gases such as carbon dioxide as pollutants.EPA spokesman Brendan Gilfillan responded The commonsense and transparent steps weve taken are already proving doomsayers wrong, as evidenced by the fact that 98 percent of states have stated theyre in a position to comply (times of india)Democrats established the committee in 2007, after taking control of the dwelling house. At the time, House Speaker Nancy Pelosi, a Democrat, called global warming possibly the greatest challenge of our time, setting at endangerment our economy, environment and national security.Scientists across the globe are toiling to perfect newer sources of energy that would end assurance on fossil fuels and threat of global warming. Those at citybased National Environmental Engineering Re search fetch (Neeri) have joined the pack. They have developed a process of producing biofuel from four different species of micro-algae (plants that cant be seen with naked eye).The climate is changing. The earth is warming up, and there is now overwhelming scientific consensus that it is happening .. With global warming on the increase and species and their habitats on the decrease, chances for ecosystems to adapt naturally are diminishing.Many have hold that climate change may be one of the greatest threats facing the planet. Recent years show increasing temperatures in various regions, and/or increasing extremities in weather patterns.Climate change, in the absence seizure of mitigation policies would in all likelihood lead to1 Possible disappearance of sea ice by the latter part of the 21st degree Celsius2 Increase in freqency of hot extremes, heat waves and heavy precipitation3 Increase in tropical cyclone intensity4 Decrease in water resources due to climate change in many semi-arid areas,such as the Mediterranean Basin, occidental United States, southerly Africa andnorth-eastern Brazil.5 Possible elimination of the Greenland ice sheet and a resulting contribution tosea level rise of about 7 metres. Without mitigation future temperatures inGreenland would compare with levels estimated for 125,000 years past whenpalaeoclimate information suggests 4 to 6 m of sea level rise.6 Approximately 20 to 30% of species assessed so far are likely to be atincreased risk of extinction if increases in global average warming exceed 1.5to 2.5 degrees C.In Africa, by 2020, between 75 and 250 million mickle are projected to be exposed to waterstress due to climate change, and in some countries yields from rainfed agriculture could bereduced by up to 50%. The impacts of climate change would be disproportionately severeon some of the poorest regions and communities of the world. My own analysis suggeststhat at least 12 countries are likely to tend towards becoming failed states and communitiesin several other states would show potential for serious conflict due to scarcity of food,, water stress and soil degradation.UN Sum mit on Climate Change, 22 September 2009 didactics OF DR. R. K. PACHAURIChairman, IPCCDirector General, The Energy and Resources InstituteDirector, Yale Climate and Energy InstituteWarming of the climate system is tyrannical as is now evident from observations of increases in global average air and ocean temperatures, widespread melting of snow and ice and rising global sea level, and that Most of the observed increase in temperatures since the mid-20th nose candy is very likely due to the observed increase in anthropogenic GHG concentrations. In the twentieth century average global temperature increased by 0.740 C while sea level rise resulting from caloric expansion of the ocean and melting of ice across the globe amounted to 17 cms. With this increase the Maldive Islands with land surface barely a metre or two above sea level, every storm upsurge and major upwelling of the seas represents a major danger to life and property. But this is not all. Climate change is already res ulting in an increase in the frequency, intensity and duration of floods, droughts and heat waves. Precipitation has increased significantly in eastern parts of North and South America, northern Europe and northern and central Asia, whereas it declined in the Sahel, the Mediterranean, southern Africa and parts of south Asia. Globally the area affected by drought has increased since the 1970sIf we take no action to stabilize the concentration of greenhouse gases in the atmosphere,then average temperature by the end of this century would increase anywhere from 1.1degrees to 6.4 degrees C. The world is increasing its emissions at a rate that may take usto the upper end of the range projected, which implies a total increase in these twocenturies of over 7 degrees C, that is, over 12 degrees Fahrenheit. Yet between 1970 and2004 global GHG emissions increased by 70% and carbon dioxide by 80%. We moldiness haltthis unacceptable trend.It is heartening that the G8 leaders have recognized the kind scientific view of limitingincrease in global average temperature to 2 C. But, we have distinctly specified that iftemperature increase is to be limited to between 2.0 and 2.4 C, global emissions mustpeak no afterward than 2015. That is only six years from now. And the 2.0 ceiling too wouldlead to sea-level rise on history of thermal expansion alone of 0.4 to 1.4 meters. Thisincrease added to the effect melting of snow and ice across the globe, could submergeseveral small island states and Bangladesh.CONCLUSIONLike Michael Jackson said Heal the world make it a better place for you and for me and the entire human race . There are people dying if we grapple enough for the living , make it a better place for you and for me While this is just the tip of the iceberg, many, many issues need addressing regarding the extinction of plant and animal species, polar bears and their natural habitat and as times of india has mentioned that the lakes are heating faster than the air Th ere are many such questions that need to be answered. .It is more important now than ever before to pull heads out of the sand and make a change for the better to our mother earth before it becomes too late. The earth is something we borrowed from our future generation hence we must do what we can in our capacity to preserve it . where the question of global warming arises it is seen as a detriment to us hence we should take measures to counter its growth or to our peril .