According to the United States Environmental Protection Agency, “climate change refers to any significant change in measures of climate [like] temperature, precipitation or wind, lasting for an extended period [of time].” Human activities, natural factors and processes like burning of fossil fuels, alterations in the intensity of the sun and ocean circulation are a few ways in which climate change can occur (U.S.EPA, 2011). This paper will be addressing the effects climate change has on forest fires and health as well as the relationship(s) between extreme weather events and the effects of climate change.
Forest fires
These happen to be one of the dominant disturbances in the United States as it is a primary process that influences the composition and structure of the vegetation in any given location. In the U.S., an average of about 100, 000 fires burn over an area of 3, 300, 000 acres during the past ten years annually (Flannigan, Stocks, Wotton, 2000). Form year-to-year; there is a great deal of variability in the statistics for forest fires. For example, between 1992 and 1996, there has been an increase of about 5.5 million acres of total burned area. That is, the difference of 6.5 million acres in 1996 and 1 million in 1992 (Flannigan, et al. 2000). Majority of the burnt areas are as a result of relatively small fires, like all the wildland fires in the western U.S. where 1% is responsible for 98% of the total burnt area. The west and southeast of the U.S. are where most of the burned areas typically occur (Flannigan, et al. 2000). The time of the year these fires occur vary based on the regions they occur in. In the southwest and southeast, most of the areas burned occur in May and June. Whereas, in terms of the areas burn...
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...emergency visits in 1991 is a good example (Greenough, et al. 2001).
References
(2011, January 24). U.S. Environmental Protection Agency: Climate change. Retrieved from http://www.epa.gov/climatechange/basicinfo.html
Flannigan, M.D., Stocks, B.J., Wotton, B.M. (2000). Climate change and forest fires. The Science of the Total Environment, 262, 221-229.
Greenough, G., McGeehin, M., Bernard, S.M., Trtanj, J., Riad, J., Engelberg, D. (2001). The potential impacts of climate variability and change on health impacts of extreme weather events in the United States. Environmental Health Perspectives, 109(2), 191-198.
Khasnis, A.A., Nettleman, M.D., (2005). Global warming and infectious disease. Archives of Medical Research, 36, 689-696.
Ramin, B., Svoboda, T. (2009). Health of the homeless and climate change. Journal of Urban Geography, 86(4), 654-664.
The ecological effects of wildfires on Yosemite are among some its greatest benefits. Trees like Bishop Pines and Sequoias have evolved in such a way that their seeds will only open when exposed to high temperatures. The fires also help to clear out dead leaves and weeds, thereby making sunlight accessible to new plants and increasing their chances to germinate (Marder). Wildfires are so essential in areas like Yosemite that over millions of years, plants have developed strategies to be successful in this type of environment. For instance, giant sequoias have developed a thick layer of fire-resistant bark. This bark is “the main explanation for tree survival in intense fires” (Gignoux, Colbert, and Menaut). Fire makes the soil fertile and redistributes the nutrients evenly so that the next generation of trees can cover more space. The fires have helped...
Fire plays a huge role in natural forests. The let it burn policy allows natural fires to burn unless, they threaten people, property, or endangered species. This policy allows the years and years of kindling that has fallen and piled up on the forest floor to burn up in smaller fires, instead of having huge devastating fire like the ones that burning for months in 1910 and 1988. When the west was first settled, forests were thinned by lumber companies that logged the trees and burned the logging debris, and by ranchers looking to increase pasture land. The last herder coming out of the mountains would set a fire to ensure good forage for the next year.
The United States Department of agriculture Forest Service investigation report on the thirty mile fire.
Wildfires started as an annual and seasonal occurrence in the south western region of California since the early 1930’s in part because of the hot dry summers and the hot dry turbulent Santa Ana winds that blow in from the desert during the fall months. Now it has become a yearlong event (Mckay, 2010). These conditions greatly contribute to the “fire season” throughout this area. This set of circumstances in conjunction with downed power lines and humans that ignited fires took place in October of 2007. This led to a series of fires that burned more than 500,000 acres, destroyed 1,500 homes, killed 9, injured 85, and forced the successful evacuation of around 500,000 people out of harm’s way.
For a significant number of years it has been evident that global temperatures were rising and that human activity is a major contributing factor to this rise. The rise in temperature is not only heating the planet but having an adverse effect on the global climate.
As people of the twenty-first century, we are all too familiar with the frequent occurrence of wildfires in our nation’s forests. Each year millions of acres of woodlands are destroyed in brutal scorches. It has been estimated that 190 million acres of rangelands in the United States are highly susceptible to catastrophic fires (www.doi.gov/initiatives/forest.html.). About a third of these high-risk forests are located in California (www.sfgate.com). These uncontrollable blazes not only consume our beautiful forests but also the wildlife, our homes and often the lives of those who fight the wildfires. The frequency of these devastating fires has been increasing over the years. In fact, in the years 2000 and 2002, it has been reported that the United States has faced its worst two years in fifty years for mass destruction fires (www.doi.gov/initiatives/forest.html.). The increased natural fuels buildup coupled with droughts have been a prevailing factor in contributing to our wildfires and unhealthy forests (www.blm.gov/nhp/news/releases/pages/2004/pr040303_forests.html). Due to the severity of these wildfires, several regulations and guidelines have been implemented to save our forests. In fact, the President himself has devised a plan in order to restore our forests and prevent further destruction of our woodlands.
...ld. Globally, more intense hurricanes and downpours could cause billions of dollars in damage to property and infrastructure. Declining crop yields due to prolonged drought and high temperatures, especially in Africa, could put hundreds of thousands of people at risk for starvation. The Ski resorts located in the lower altitudes of the Swiss Alps have difficulty obtaining bank loans because of declining snow.
The causes of climate change are also known to them that though it is not only the human action playing role but it is the main cause of climate change. The effects of climate change does include harm and loss of environment and organisms but it also has impact on the human health. Semenza (2014) displays an assessment report which states that throughout the 21st century, the rapidly occurring climate change will lead to increase in number of humans with ill health in many regions mainly in those of developing countries where citizens face low income. Semenza (2014) also mentions how there are physiological limits to intense heat exposure and the global climate change will turn some parts of the world which are currently highly populated into uninhabitable even if the global temperature rises by 7 degrees Celsius. Johnson (2014) states how El-Niño-related hydroclimate variability will lead to being intensified under global warming mainly in areas as southern Asia which are already stressed by different droughts, floods, and crop yields. Dettinger, Udall, and Georgakakos (2015) mentions how climate change puts risk and threat on water resources in the western United States to an extent that no other part of the country matches it. Dettinger, Udall, and Georgakakos (2015) also states how recent research and studies strictly point a limited number
Climate change is a term used to describe the increase in the average temperature of the earth’s surface and has been a major problem recently. Our world is constantly changing and therefore so is our climate, as our country industrializes we create more greenhouse gases from the immense human activity being produced. “These gases get into the atmosphere when coal, natural gas and oil is burned for energy and over the last century the burning of fossil fuels like coal and oil has increased the concentration of carbon dioxide… the clearing of land for agriculture, industry, and other human activities has increased concentrations of greenhouse gases.”(NASA 1). Climate change is causing global warming that causes the earth to heat up rather than
Fire at any level can be devastating, yet the effects that wildfires have on every worldwide country really has left its mark on the land. As written by world renowned wild fire spokesperson Smokey the Bear, “Every year, wildfires sweeps through parts of the United States setting wilderness and homes ablaze. On average these raging infernos destroy about four to five million acres of land a year. But in 2012, wildfire burned more than 9.3 million acres, an area about the size of Massachusetts and Connecticut combined” (U.S. Wildfires). Destroying homes, crops, towns and of course forests. Yet the effects of these fires can be seen from a negative perspective as well as some positive. Plus there are natural causes as well as manmade that makes these destructive fires erupt and become almost unstoppable in seconds.
Global Warming is a condition caused by greenhouse gases and human activities. The increased concentration of greenhouse gases due to activities such as deforestation and fossil fuel burning is causing the Earth’s atmosphere and oceans to warm up. As a result of this, global warming has some serious effects in the shape of extreme weather, species extinctions, and rising sea levels. These effects can contribute to the changes that are taking place all over the world, most of which are dangerous enough to pose a threat to the survival of life on Earth in the future.
The Forest fire is occurring very frequently nowadays, reasons for it are a heavy increase in global warming and an increase in temperature.
One of the effects of climate change is how it will affect the people. Climate change will have a huge impact on the people’s health. The health of the people will be affected mostly by air pollution and respiratory problems will have the greatest risk of health effects. Increases in moulds and pollens due to warmer temperatures could also cause respiratory problems such as asthma for some people. Should the effects of climate change get any worse than what it is now, people around the world will have to face some serious problems. Food security will be affected and thus diseases can easily get transmitted. Food or waterborne diseases are acquired through eating or drinking. For example, Hepatitis A is a viral disease that interferes with the functioning of the liver. It can be spread through consumption of food or water contaminated by fecal matter (CIA World Factbook, 2011). Apart from being infected with Hepatitis A, people around the world can potentially get infected with Hepatitis E, bacterial diarrhoea, and Typhoid fever.
Global heating and cooling has occurred on a cycle for millennia, however in the past thirty years the increased use of energy and fuels by humans has drastically changed this natural occurrence (Juerg, 2007). The largest cause of this warming is the release of carbon dioxide from the burning of fossil fuels. Carbon dioxide levels are twenty-five percent higher than they were in 1957 (UCS, 2013). This seemingly insignificant change has caused a myriad of negative effects. The endangerment of species, rising sea levels, and increased natural disasters are just a few examples of change brought about by global warming (Juerg, 2007).
The Centers for Disease Control have been involved in studying global warming's effect on human health. Its affect on the climate can adversely affect humans. Plagues have been attributed to global warming. An increase in temperature can result in a longer life cycle for diseases or the agents spreading them.” Global warming will lead to more precipitation, which enables infectious diseases to be more easily contracted and spread.” (2) Effects of global warming on human health might not be immediately detected.