Nexus between global warming and natural hazard
Global warming is the increase of temperatures all over the world, due to the increase in greenhouse gases that absorb heat from the sun’s rays. On the other hand, natural hazards are processes that happen in the biosphere and may cause damage or a natural disaster on the people or the environment. Scientists have proved that global warming is now a real threat to the environment. There are several theories that explain how global warming started. Some people have said that it all began at the start of the industrial revolution but its effects then were very minor and could not be seen.
However, in the late 19th century, its effects and the damage it could cause became more apparent. A recent feature on CNN showed that the ice at the earth’s poles is melting at a very high rate and that in future; animals like penguins, polar bears, and seals that are inhabitants of the Polar region may become extinct. It is also said that the toxic gases that we produce such as those with chemicals from factories, smoke from cigarettes and exhaust pipes of cars and many others gases are carried to the earth’s atmosphere and trap the excess heat from the air.
The effects of this are seen in natural disasters such as disease outbreaks and killer ocean waves (Tsunami) among others. Other people have said that these greenhouse gases destroy the ozone layer because of the chemicals they contain, leading to increased heat from the sun rays, which in effect contribute to occurrence of natural hazards. Global warming has shown several of its effects on the environment, to animals and also to the human beings. Some of the effects that global warming has shown on the environment are; the recent climate changes that have led to various problems to every living thing.
Such include the rising sea levels, the numerous glacier movements, the melting of ice at the Arctic, and the changing patterns of rainfall. Others are the increase in the rate at which the tropical diseases are spreading and the frequent occurrence of catastrophes such as the earth quakes and wild fires. Below is a detailed discussion on how global warming has led to the increased natural hazards. Global warming effect on diseases Global warming has caused heat severity to increase, leading to a general increase in the heat related diseases all over the world.
Such diseases mainly affect the children under the age of five years and the elderly people. Disease control centre in America has released reports showing that annually, most deaths are as a result of diseases caused by heat waves, rather than disasters like floods or earthquakes. With the levels of air pollution increasing steadily, an increase on the number of people with respiratory and cardiovascular diseases is likely to increase. Due to increased pollution, high levels of ozone smog will definitely increase. An example of such a disease is pediatric asthma, which has been increasing for the past 25 years.
If global warming does not reduce, the level of child mortality will definitely increase. Other kinds of diseases that will increase because of global warming are the vector borne diseases. Reports done by the World Health Organization have shown that today, malaria, cholera, diarrhea and floods that occur due to climate change are responsible for the death of over 150,000 deaths per year. Mosquitoes carrying the malaria germs are moving to areas like South Korea and New Guinea where Malaria had never been seen before.
Increasing temperatures are shortening the cycle of the mosquitoes carrying the malaria germs, which means there will be more mosquitoes spreading malaria every year. Other vector borne diseases like the Dengue fever, which killed over 60,000 people in a single outbreak in Brazil’s Rio de Janeiro, will definitely increase as global warming levels increase. Viruses like Hantavirus and West Nile are also expected to spread faster as changing weather conditions prevail. Drought due to Global warming The rising temperatures have already caused the rainfall pattern to change all over the world.
This has led to poor crop production hence food insecurity especially in Africa, where a very high population relies on farming as their major source of income. Livestock farmers will also suffer along because the grazing lands for the animals will dry out, leading to the death of animals. Drought will have a many impacts on the farmers from the developing countries; lack of food, losing their livestock and poor or no income among others. Other cold areas like Canada will have increased farming land if the ice melts and the temperatures rise.
Food prices of cereals such as rice, maize, and wheat have increased, leading to hunger and malnutrition. Also, severe weather conditions like strong winds can be major destructors of crops, causing hunger. Lack of rainfall will also mean no water for people or even animals and can cause massive deaths if not addressed. Severe wildfires The effect of increased heat intensity in the world on human health and mortality has already been seen. A good example is the 2003 summer heat wave, which led to the death of over 35000 people in Europe and was infant caused by global warming.
Another example is the massive summer heat wave of Greece in 2007, which led to the start of wild fires that are a rare occurrence. Wild fires have recently been on the rise in many parts of the world and have been caused by the severe heat due to global warming. Many homes have been destroyed, people have died or become homeless and even animals have died in the fires. For example, the recent wild fire in California that caused more than a million people to lose their homes was associated with the drought that was present in South California.
Floods caused by climate change Global warming has led to the increase of sea levels which make the coastal areas to become more prone to floods and storms. Coastal cities in Asia, the Pacific and Indian Oceans islands are more susceptible to floods and storms. Examples of destructive floods caused by global warming are the Bangladesh floods, which displaced more than seven million people, while in Dakar, seven hundred people died, and others displaced. Floods also cause water to stagnant, hence the transmission of water borne diseases.
More than 600,000 people died in the 1900’s due to climate change related diseases and disasters. However this death rate has drastically increased in the past eight years, with up to 150,000 people dying per year because of the climate changes. Global warming effects on the oceans and the sea level. Global warming has several effects on oceans. They include effects like, the warming of the water on the surface of the ocean, the rise of the sea level because of thermal expansion, massive changes in the circulation of oceans and melting of the ice sheets and glaciers.
If global warming continues, it is believed that it will in future cause the sea levels to rise up to three feet. There has been prove to show that if steps are not taken to control it and the rate at which it is taking place all ice sheets in the world will melt, and the sea level will rise even higher. In Green land, over the past decade, the flow of ice has more than doubled, leading to about 40 percent loss of ice. On the other hand, oceans absorb the excess carbon dioxide in the atmosphere. However, if the Carbon dioxide absorbed is in excess, it may result to acidification of the ocean.
Due to the increasing global warming, the temperature of the ocean water may rise, making it unable to take in the excess carbon dioxide. Ways of controlling global warming. We can make a choice on what to do to control global warming and ensure that our planet is safe. When we release toxic fumes from the factories, we destroy our planet. Factories should therefore ensure that the poisonous gases that are generated during the manufacturing process are treated before they are released. Planting a lot of trees is one way that we can control global warming.
Forests act as water catchments areas, besides absorbing carbon dioxide. The governments of all countries should take strict action on those who practice deforestation. You can also decide to take matters in to tour own hands by at least planting trees in your backyard. The good practice of recycling and reusing is also a step to controlling global warming. The manufacture of new papers, plastics, glasses, and even metals from recycled materials is more economical because it saves up to seventy to eighty nine percent of the pollution and carbon dioxide that would have been produced if virgin raw materials were used.
Finally, the most important step is to hold campaigns educate every person on global warming and how to control it. People should also be encouraged to use the natural and renewable energy sources like wind and solar energy. Work cited Houghton, John T. “Global Warming”: Cambridge University Press, 2004 Johansen, Bruce. E. “Global Warming in the 21st Centiry: Melting Ice and Warming Seas”: Praeger Publishers, 2006 Langholz . A. J and Turner. K. “You Can Prevent Global Warming (and save money)”: Andrews Mc Meel Publishing, 2003 Singer. F S and Avery D. T “Unstoppable Global Warning”: Rowan and Little, 2007Sample Essay of RushEssay.com