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Impact of deforestation
Impact of deforestation
Impact of deforestation
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Imagine? One day you wake up and all you can see and smell is smoke. Do you think this will be good for you? Good for our planet?. However, even though some people believe greenhouse gases have nothing to do with climate change, people should take more responsibility for the planet because the deforestation of land and the burning of fossil fuels is the principle cause of climate change. The warming that is evident is the instrumental temperature record is consistent with a wide range of observations, as documented by many independent scientific groups. The climate system can warm or cool in response to changes in external forces. Therefore, some scientist say that human generated greenhouse gas emission is too small to substantially change …show more content…
Most people do not think about global temperatures, but local ones. Therefore, climate change affects ecosystems, not just through increases in the mean, but also through changes in the extremes. Earth is already showing many signs of worldwide climate change. Even more, scientists are now able to say that climate change increases the risk of a particular weather pattern by a measurable amount and, in any case, that a particular episode is almost impossible to imagine without global warming.
Nine of the eleventh hottest years in the 20th century have occurred since 1985 which is not consistent with a natural trend. Glacier Shrinkage is occurring at a much faster rate than can be explained by natural trends. Even when the heat effects of volcanoes and other misleading weather phenomena that would make the temperature of the earth seem higher than it actually is being taken out of consideration studies show that the surface temperature of the earth has been increasing at a rate of 0.17 degrees Celsius per decade. These figures are not consistent with a natural trend, and, when one considers the tens of thousand of years in which humans have inhabited the earth, and that humans have really only started burning fossil fuels heavily since the industrial revolution, and the fact that the world’s population is only going to increase, this number is dauntingly
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What is also becoming increasingly clear is the effect that forests have on the climate and the climate has on forests, and how changes in one system will affect the other. Losing forest makes it worse. Clearing forests also releases large amounts of carbon dioxide. Worldwide deforestation means we don’t have as many trees to absorb the extra CO2. This means more of it stays in the atmosphere, trapping more heat. Forest are cut down for many reasons, but most of them are related to money or to people’s need to provide for their families. The biggest driver of deforestation is agriculture. Farmers cut forest to provide more room for planting crops or grazing livestock. Often many small farmers will each clear a few acres to feed their families by cutting down trees and burning them in process known as “ slash and burn” agriculture. Therefore, not all deforestations is intentional. Some is caused by a combination of human and natural factors like wildfires and subsequent overgrazing, which may prevent the growth of young trees. Deforestations has many negative effects on the environment. The most dramatic impact is a loss of habitat for million of species. So seventy percent of Earth’s land animals and plants live in forest, and many cannot survive the deforestation that destroy their homes. A more workable solution is to carefully manage
Deforestation is the clearing of a forest and/or cutting down of trees for human benefits such as agriculture, wood exports, etc. Deforestation is the cause of numerous environmental impacts such as habitat loss, flooding and soil erosion. It can also cause climate change, by reducing the amount of rainfall and changing the amount of sunlight reflected from Earth’s surface and increases the risk of forest . Tree growth is important for biodiversity because they absorb carbon dioxide which is a harmful greenhouse gas . However, since deforestation reduces natural carbon sinks, it disrupts the balance between oxygen and carbon dioxide in the air causing the amount of carbon dioxide in the air to increase. This poses a serious threat since carbon dioxide traps the sun’s heat and radiated light inside the earth’s atmosphere. So, with the increase in carbon dioxide more heat is trapped and thus adding to the effects of global warming. Among the many places where deforestation takes place, Amazon seems to be one of the most affected ones. More than 20 percent of it is already gone, and much more of it is severely threatened due to deforestation . It is estimated that the Amazon alone is vanishing at a rate of 20,000 square miles a year .
Environmental issues affect every life on this planet from the smallest parasite to the human race. There are many resources that humans and animal needs to survive; some of the most obvious resources come from the forests. Forests make up a large percentage of the globe. The forests have global implications not just on life but on the quality of it. Trees improve the quality of the air that species breath, determine rainfall and replenish the atmosphere. The wood from the forests are used everyday form many useful resources. Moreover, thinning the forests increases the amount of available light, nutrients and water for the remaining trees. Deforestation (forest thinning) is one of the most critical issues of environmental problems that are occurring today.
For over a hundred years, scientists have been carefully gathering and verifying data on the earth's temperature. The latest data reveals some striking trends:All 10 of the warmest years on record have occurred in the last 15 years The 1990's have already been warmer than the 1980's- the warmest decade on record The global average surface temperature has risen 0.5 degrees (site source)For the first time ever, the Intergovernmental Panel on Climate Change, the authoritative international body charged with studying this issue, concluded that the observed increase in global average temperature over the last century "is unlikely to be entirely natural in origin" and that "the balance of evidence suggests that there is a discernible human influence on global climate."The Earth's climate is the result of extremely complex interactions among the atmosphere, the oceans, the land masses, and living organisms, which are all warmed daily by the sun's enormous energy. This heat would radiate back into space if not for the atmosphere, which relies on a delicate balance of heat-trapping gases, including water vapor, carbon dioxide, nitrous oxide, and methane, to act as a natural "greenhouse," keeping in just the right amount of the sun's energy to support life.For the past 150 years, though, the atmospheric concentrations of these gases, particularly carbon dioxide. Have been rising. As a result, more heat is being trapped than previously, which in turn is causing the global temperature to rise. Climate scientists have linked the increased levels of heat-trapping gases in the atmosphere to human activities, in particular the burning of fossil fuels (coal, oil, and natural gas for heating and electricity; gasoline for transportation) deforestation, cattle ranching, and rice farming.
On average millions of hectares of forests are destroyed each year resulting in severe consequences that will affect not only our lifestyle, but also all the animals with which we share our planet. Many species of animals and plants will become extinct and if we continue with the destruction of our forests, earth will be unable to sustain life.
Farmers cleared away the trees for farm animals to graze which means deforestation is caused by growth. Forests assume a huge role in the carbon cycle on our planet. When forests are slashed down, not only does carbon absorption cease, but also the carbon which was stored in the burned trees is released into the atmosphere as CO2. Small crops for instance plants and agricultural crops also draw in carbon dioxide and release oxygen, however forests store up to 100 times more carbon than agricultural fields of the same zone. “It is estimated that more than 1.5 billion tons of carbon dioxide are released to the atmosphere due to deforestation and over 30 million acres of forests and woods are lost every year” Conserve Energy Future
Our world is always changing, so is our climate. Some changes are apparent, others not so much. Climate change is an important issue of concern in the twenty-first century. Environment, if it changes at all, evolves so slowly that the difference cannot be seen in a human lifetime (Wearth, 2014). Mostly all scientists predicted that it would take thousands of years for the planet to warm up due to emissions of carbon dioxide from fossil fuels called greenhouse gases. But in the past 200 years, things began to change. The rate and the amount of warming that is happening on this planet are unprecedented. Wearth says, “People did not grasp the prodigious fact that both population and industrialization were exploding in a pattern of exponential
“The Earth is 4.6 billion years old. Scaling to 46 years, human have been here 4 hours, the industrial revolution began 1 minute ago, and in that time, we’ve destroyed more than half the world’s forests.” - Unknown. One major environmental problem in our world is deforestation - what is that, you ask? According to the Merriam Webster Dictionary, deforestation is the action or process of clearing of forests. Some consequences of this include a large contribution to global warming and climate change (about 1.5 billion tons of carbon dioxide each year), loss of biodiversity especially in tropical rainforests, and the extinction of many known or yet to be discovered species. But, through some Debt-for-Nature Swaps, leaving forests
Interesting fact: 86 percent of American adults drive cars and 72 percent believe that people need to limit emitting greenhouse gases (Winke). Where is the connection between American thought and action regarding climate change?
Climate change. The two letter word so feared by scientists, so ignored by the average human being. What is it that makes scientists fear this phrase so much? For the concept of “climate change” has been seen throughout the history of the earths existence. For centuries, our climate has fluctuated through increasing and decreasing amounts of atmospheric carbon dioxide and climatic cycles. So what is the big deal? The problem, and the reason why this concept instills fear directly into the core of scientists is the rate at which over the past 1,300 years atmospheric carbon dioxide levels have risen. This unnatural increase in atmospheric carbon dioxide, due to the immense amount of anthropogenic burning of oil and coal, affects the transfer
There is a quote “Don’t blow it- good planets are hard to find”, which can be send out as a reminder to human beings in light of the current climate changes happening all around. Climate change is an ongoing and a slow process and it can be seen throughout the history of the earth from the Paleozoic era to the Ice age to the current day. In the past climate changed over millions of years and was due to natural phenomenon so the species had ample time to evolve and adjust to the change. But the recent change in earth’s atmosphere has been rapid. In the last two decades climate change has occurred exponentially due to human activity. Human beings through deforestation, increase emission of greenhouse gas and industrial development have caused a rapid climate change, endangering his own life and that of other species on the planet, and making it inhospitable for future generations.
In talking about global warming, we need to learn what causes the greenhouse effect. Rays from the sun are taken up and absorbed by water vapor that is natural in the atmosphere. The United States emits the largest man made greenhouse gases in the world. As Americans we must realize the responsibility to reduce the emissions. (Gore, Albert) Water Vapor is eighty percent of greenhouse warming. The last twenty percent results from other gases that are in very little amounts. A huge absorber of the sun’s heat rays is carbon dioxide. Us as humans release a lot of carbon dioxide. When fossil fuels are burned, they release big amounts of carbon dioxide. Carbon dioxide is on the increase in our atmosphere due to car emissions. Approximately eighty percent of CO2 increases because of man’s use of fossil fuels. When there is more carbon dioxide in our atmosphere the more sun rays are absorbed. In result to this happening this will cause the earth and the earths atmosphere to warm. When the earth is warming, water temperatures will start to get warmer. Oceans and lakes will get warmer in result f...
Climate Change is any substantial change in climate that lasts for an extended period of time. One contributor to current climate change is global warming, which is an increase in Earth’s average temperature. Plants and animal species throughout the world are being affected by rising temperatures. Many plants are flowering earlier now than they once did; animals, such as the yellowbellied marmot, are emerging from hibernation earlier; and many bird and butterfly species are migrating north and breeding earlier in the spring than they did a few decades ago, all because of slight changes in temperature cues. (Shuster)
Global warming has become on of the most controversial issues in the media today. While most of the Western world countries have generally accepted the premise that man's chemical emissions in the atmosphere can and are affected by the world’s climate patterns, in the United States, the issue has become so politicized with many republicans challenging the science behind the theory. Global warming is a greenhouse effect whereby gases are trapped on the earth’s surface causing it to heat up (Maslin 14). It is based on the worldwide temperature records that have been maintained by human beings through their activities since the 1880,s. In addition, global warming is not only caused by human activities only but also through climate changes in solar radiance. The problem is that, humans continue to contribute to the global warming phenomenon. All citizens should work in reducing human activities that cause global warming and also support the development of nuclear power. Scientists deem that, global warming is mainly caused by human activities which accelerate the natural process by creating greenhouse gases in the atmosphere. Human activities have become a great contribution to the greenhouse effect and this means that climate changes are inevitable. They further argue that, if these activities continue and are not reduced, it will lead to more trapping of energy radiated from the earth and this will likely lead to extreme weather and global warming. Global warming should be at reduced levels or else, it will be catastrophic.
Scientists themselves are just beginning to understand the serious problems caused by deforestation. Deforestation occurs all over the world by all types of people. Peasant farmers even add to the problem because in most tropical countries the farmers are very poor only making between eight hundred and fifty four hundred dollars annually (NASA Facts). Therefore, they do not have enough money to buy what they need to live therefore they must farm to raise crops for food and to sell. In these poor countries the majority of people are peasant farmers this farming adds up to a great deal of deforestation. These farmers chop down a small area of trees for there plot to farm on and burn the tree trunks (NASA Facts). The combined number of farmers maintaining this process creates a great deal of clearing and burning of the land they need to cultivate, which results in land being treeless. Commercial logging is also another common form of deforestation. This commercial logging wipes out massive amounts of land sometimes deforesting several miles at...
The earth is a complex system, which continues to evolve and change. Climate change and global warming are currently popular in the political agenda. But what does “climate” really mean? The difference between weather and climate can be conveyed in a single sentence: “Climate is what you expect; weather is what you get.” Based on research of the geologic record, we know that climate change has happened throughout Earth's history and at present, ever-increasing evidence points to the roles that humans play in altering Earth systems. The Earth and its atmosphere receive heat energy from the sun; the atmospheric heat budget of the Earth depends on the balance between incoming solar radiation and outgoing radiation from the planet; which has been constant over the last few thousand years. However present evidence seems to suggest that the recent increase in temperature has been brought about by pollution of the atmosphere, in particular the release of huge amounts of carbon dioxide, mostly through Anthropogenic Forcing (human activity) and other various internal and external factors. I...