Global Warming Essay

Since the mining of Natural gases and energy, Emissions of greenhouse gasses have been slowly releasing into the atmosphere. This happens by burning the natural gases to create energy for our vehicles or even lawnmowers. On Earth we utilize a lot of energy to maintain a lifestyle we know and love today. But most forms of energy, cars and Farming produce large amounts of green-house gases that can heat and change the earth's atmosphere permanently and cause the ice caps to slowly melt because of constant heating.

Did you know that with all this talk about global warming, and the disappearing of the ozone layer, the root of the problem is us? Yes, we’re the cause of all those problems. We keep putting something called greenhouse gases into the air. A few greenhouse gases are water vapor, carbon dioxide, and methane. While some climate change is natural, humans need to be careful about greenhouse gases because ecosystems are changing, sea levels are rising, and global average temperature increased by more than 1.3 degrees Fahrenheit over the last century.

Below are four photos of the ozone layer at different times. The purple parts of the pictures represent the thinnest parts of the ozone layer. The blue parts are the next thinnest part of the ozone layer. The green parts of the pictures represent the normal thickness of the ozone layer. The red and yellow parts represent a buildup of ozone. The reason for the dramatic decrease in the ozone between September 17, 1979 and October 7, 1989 (top left and top right photos) is because of the introduction of CFCs or chlorofluorocarbons (Alford).

The burning of fossil fuels such as coal and oil, and deforestation over the last 200 years has caused the concentrations of heat-trapping "greenhouse gases" to increase significantly in our atmosphere. These gases prevent heat from escaping to space. Greenhouse gases are necessary in our lives as they help in keeping the planet 's surface warmer than it would otherwise be. But, as the concentrations of these gases continue to increase in the atmosphere, the Earth 's temperature is climbing above past levels (USEPA, 2014).

The Ozone layer had been depleting since recently. The hole has started healing itself back due to the banned substances such as Aerosols. The Ozone layer will help block out solar radiation as well as bring climate change to a halt, however, scientists say that a pause in climate change does not mean a complete and forever stop (http://www.dailymail.co.uk/sciencetech/article-3699735/The-Antarctic-COOLING-Region-bounces-ozone-damage-scientists-insist-global-warming-taking-place.html).

NGS integrates greenhouse into other major policy initiatives, such as the Natural Heritage Trust, and launches new measures to increase greenhouse emission reduction activities across the Australian community. It provides the strategic framework for an effective greenhouse response and for meeting current and future international commitments. It will provide a fresh impetus for action by governments, stakeholder groups and the broader community and set directions for that action into the next century.

These gases also have an effect on climate change. There are two largest ozone holes over Antarctica which occurred in 2000 (29.8km2) and 2006 (29.6km2). The ozone layer over Australia (mid-latitude) is thinned which results in more UV exposure since more UV radiation is reaching earth's surface. Research shows that the ozone layer has been thinned all over the world but especially in Australia with a 5-9% of ozone depletion since 1960. The ozone layer over Antarctica has also been thinned in spring ("atmospheric meteorological conditions around Antarctica", clouds made of ice, nitric and sulfuric acid). The discovery of the existence of the Antarctic ozone due to industrial production of chlorofluorocarbons (CFCs) in 1985 leads to the Montréal Protocol12, an international agreement which has been established to eliminate the industrial production of chlorofluorocarbons in 1987. Today the ozone layer repairs itself most due to the elimination of these gases and the global warming. The Montreal Protocol is a success and is also the first treaty that reached an agreement with all the countries in the world. Scientists estimate that this treaty will be preventing over two million cases of skin cancer each year by 2030 and that in 2035 all the vast majority ozone depleting substances will be eliminated.

Over the past few decades, the ice that can be found in Greenland, Antarctica and the Arctic Ice Caps, has begun to melt away. These massive sheets of frozen water are disappearing at an unbelievably fast rate. The problem boils down to global warming. Climate change has been around for millions of years and is unavoidable, but the way people live their everyday lives has sped up the process and has had a major impact on our world. The way humans treat the earth is indisputably killing the only planet we’ve ever known. Although the affects of climate change are not always prominent to the average person, scientists have noticed a massive change in the ice located in these colder regions and are blaming it on global warming.

Carbon dioxide is hazardous to the ozone layer and thereby weakens it. The ozone layer is what protects the earth from being over heated by the sun. The ozone layer reflects heat rays coming from the sun. Not everything, but enough so that our earth stays at a relatively cool temperature, excluding the heat generated from natural

The ozone layer is earth's natural shield from the sun and without it we would dead. The ozone layer can never be repaired, any damage done to it is permanent. A world without the ozone layer would immediately result in no vegetation, most animals dead, surviving human flesh would be burning and leading to cancer and organ deterioration. To prevent this from happening, we need to take care of the air and work together to live in a safer environment.

Based on a “photobiological” definition of UV (the Global Solar UV Index), it is divided into three categories: UVC (200–280 nm), UVB (280–315 nm), and UVA (315–400 nm) (WHO, 2002). On Earth, the most of the solar UV radiation is attenuated by the atmospheric gases, pressure, suspended dust, water ices, etc. As a result, a relatively small amount of UV reaches the earth’s surface (Tomasko et al., 1999). Studies in Antarctica showed that harmful UVC radiations at 254 nm wavelength is attenuated by 40% and 90% at depths of 1 cm and 5 cm ice, respectively (Cockell & Horneck, 2001; Nienow et al., 1988). Ozone layer formed in the Earth’s stratosphere act as a shield by absorbing UV wavelengths shorter than ~300 nm (Warneck, 1988). The depletion of ozone layer has affected the spectral composition of solar UV radiation reaching Antarctica and Southern Ocean. In spring, increased levels of short wavelength UVB (280-320 nm) radiation was recorded in Antarctica (Staehelin et al., 2001).

The period of change came about in 1970 with the development of a regulatory body to implement a regulatory authority to maintain oversight in the control of emitted pollutants to improve air quality. Ozone depletion as a result of CFC releases was referred to as a “hole in the Ozone” and catastrophic events were sure to follow. Along with ozone depletion came the theory of global warming and the hypothesis that GHG emissions induced effects that accelerated the collapse of polar ice sheets that would cause sea levels to rise. Elevated sea levels and increased surface temperatures would induce the melting of large amounts of glacial ice that would drop sea water temperatures and interfere with the oceanic conveyor belt currents that control water temperature, photosynthesis, salinity and mixing of chemical compounds in the largest of Earth’s natural sinks.

Climate change is one of the central topics in current environmental research. Earth‘s climate is highly dependent on the atmospheric radiative balance. However the atmosphere itself is dependent on the solar radiation input and output, clouds, the abundance and distribution of trace gases and aerosols. Aerosols are the globally distributed specks of matter that can be described based on their shape, size and chemical composition. Despite their relatively small size these globally distributed specks or particles when found in the atmosphere have the ability to strongly influence both the transfer of radiation energy and special distribution of latent heating thus influencing the weather and climate.

U.S. Conditions like Florida and other states with a high range of hot spells are perfect

The survival of human beings and animals greatly depend on the combination of gasses in the atmosphere; slight disruption of this composition can cause devastating effects on their existence. An imbalance in these atmospheric gasses is known to result in global warming, a great threat to the contemporary world. We cannot underestimate the effects air pollution has on the ozone layer which largely contributes to the existence of organisms on the planet.