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Humans beings in perpetuating climate change
Humans beings in perpetuating climate change
Humans beings in perpetuating climate change
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Bradford, A. (2015, March 04). Deforestation: Facts, Causes & Effects. Live Science. Retrieved: from http://www.livescience.com/27692-deforestation.html In the article, Bradford examines that the deforestation of trees not only lessens the amount of carbon stored, it also releases carbon dioxide into the air. According to the 2010 Global Forest Resources Assessment, deforestation releases nearly a billion tons of carbon into the atmosphere per year, though the numbers are not as high as the ones recorded in the previous decade. Michael Daley, associate professor of environmental science at Lasell College in Newton, confirmed that deforestation is the main reason impacting on the global carbon cycle. Alina Bradford is a contributing writer for Live Science, she has obtained certifications of multiple health, safety and …show more content…
(2015, July). Skeptical Science. Retrieved from: http://www.skepticalscience.com/global-warming-natural-cycle.htm On Skeptical Science, it is said that internal variability will move energy between the ocean and the atmosphere, causing short-term warming and cooling of the surface and longer-term changes when similar cycles operate on decadal scales. The hypothetical natural cycle would have to explain whether or not the impact of people on climate change. Either a century of basic physics and chemistry studying the radiative properties of greenhouse gases would have to be proven wrong, or the natural cycle would be unbelievably complex to prevent such dramatic anthropogenic emissions from warming the planet. Skeptical Science was created and maintained by John Cook, the Climate Communication. Fellow for the Global Change Institute at the University of Queensland. He originally obtained a Bachelor of Science at the University of Queensland. He co-authored the 2011 book Climate Change Denial: Heads in the Sand with Haydn Washington, and the 2013 college textbook Climate Change Science: A Modern Synthesis with Tom
More cellular respiration is causing there to be more carbon dioxide in the air. The first piece of evidence that that supports this claim is evidence card D. Evidence card D states once the trees were cut down, some were used for housing and some were left behind for the decomposers to take care of to get energy storage molecules.. This matters because this shows that since the decomposers are decomposing the dead matter for energy storage molecules, more cellular respiration is now being used. The second piece of evidence that supports this claim is evidence card B. Evidence card B shows that once deforestation happened the forest animals started to die off slowly without any homes and cows started
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 .
Ever since the advent of weather observation and prediction technology in the past 150 years, science has created a consensus that the earth is getting warmer, and that human influence is to blame. Some even blame this change, known as global warming, for bouts of extreme weather including cyclonic storms, droughts, wildfires, and heat waves. These scientists (and much of the public) believe that our influence is the problem, as our emissions of carbon dioxide and other greenhouse gasses, the product of the usage of our fuels, are polluting the atmosphere and trapping energy from the sun within. However, a minority group, scientists and public skeptics alike, believe this warming trend is merely a coincidence with the earth’s naturally cyclical climate, and that the activists are overstating something they know little about. Many even agree that if the prospect of our influence were to be true, the effects are not at all that bad, unlike what it is hyped to be. Thus, global warming has become a debatable theory. Much like legislation that prevents schools from teaching evolution as anything more than a theory, now there are also laws that mandate that global warming be considered debatable, and to argue both sides of it (Jonas).
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.
Climate change has been nothing, but controversial in the last fifty years. Climate change is a change in the average weather of a region or city. Scientists have opted to use the term "climate change" instead of global warming because as the Earth's average temperature changes, winds and ocean currents move heat around the globe in ways that can cool some areas, as well as warm others. There is an ongoing dispute about the effects of humans on the global climate and about what policies should be implemented to avoid possible undesirable effects of climate change. Ninety-seven percent of published scientific research concluded that climate change is real, problematic for the planet, and has been exacerbated by human activity. But what about the three percent that contradicts that?
Szalay, Jessie. "Deforestation: Facts, Causes & Effects." LiveScience. TechMedia Network, 06 Mar. 2013. Web. 01 Mar. 2014. .
WPF/World Preservation Foundation, 2010, Deforestation statistics, sponsored by WPF, viewed 3rd November 2013, Available at: http://www.worldpreservationfoundation.org/blog/news/deforestation-statistics/#.UoFtypQY3TV
Deforestation has accumulated many multifaceted controversies over time. The main one, however, is the impact deforestation has on water flow. People have different perceptions on how deforestation affects the flow of water, this lead to a controversy between conservationists and a group of theorists. Many years ago, water was used as a way for almost all the mills to function. Changes in the ecosystem depend on the rate and extent of deforestation and determines how drastic the changes will be.
Szalay, J. (2013, March 6). Deforestation: fact, causes & effects [Fact sheet]. Retrieved March 12, 2014, from LiveScience website: http://www.livescience.com/27692-deforestation.html
“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
This is alarming since recent data indicates these enormous forests are land-dwelling carbon absorbers that could help to slow worldwide climate alteration. The United Nations ' Food and Agriculture Organization (FAO) estimates “eighteen million acres of forests have been destroyed worldwide;” and NASA forecasts “that if current deforestation rates are not reduced, rainforests could become entirely eradicated in a century.” The nations with substantial deforestation are Brazil, Indonesia, Thailand, Africa (The Democratic Republic of Congo included), and remote areas of Eastern Europe. Indonesia, the country with the greatest deforestation within the last century, has lost approximately forty million acres of indigenous
Deforestation, defined by biologist Charles Southwick as "the destruction of forests; may involve clear-cutting or selective logging" (p. 365), is a predominantly human-driven process that is dramatically altering ecosystems worldwide. "Clear-cutting" involves the indiscriminant removal of every single plant and tree species from within a selected area. The other major process of deforestation, "selective logging," focuses removal efforts on only specific, predetermined tree species within a chosen area. The statistics gathered about human deforestation over time are considerable, and they can be somewhat controversial. Depending on the source and the location selected, the magnitude of deforestation varies. Southwick estimates that, approximately 10,000 years ago, 6.2 billion hectares (23.9 million square miles) of forest existed on earth (p. 117). That figure is equivalent to 45.5% of the earth's total land. He further estimates that, by 1990, this amount had declined 30%, with only 4.3 billion hectares of forest remaining (p. 117). Southwick also acknowledges other estimates that place the total amount of deforestation between 50% and 75% (p. 117). NASA has similar deforestation statistics that confirm these trends. According to their website, 16.5% of the Brazilian Amazon forests have been destroyed. They also note similar magnitudes of deforestation in Southeast Asia (Cambodia, Indonesia, Laos, Malaysia, Myanmar, Thailand, and Vietnam), despite the significantly smaller total area of forest within these countries. These grim figures are somewhat tempered by the NASA finding that, over the past ten years, the deforestation rate has declined from 6,200 square miles per year to 4,800 square miles per year. Though this trend is n...
Deforestation is the amputation of trees from forest areas more swiftly than they can be replanted or regenerate naturally. The fact that trees play an incredibly momentous part in stabilising climate, atmospheric composition and soil structure, removing trees rapidly becomes a major problem. There are numerous reasons behind the felling of trees by mankind. The Amazon basin is a prime example of humans exploiting rainforests. Within this tropical rainforest lie a vast variety of tree species, with many uses, giving humans even more reason to exploit this area.
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...
Nowadays, earth has been facing a series of severe environmental issues which require urgent attention to make the ecology friendly, and global warming is considered as the most vital one. Although some people doubt and disagree that global warming is happening, climate change is real and it is mainly influenced by human activities through the increased production of green house gases such as methane and carbon dioxide. Global warming has the effect of melting polar ice caps and glaciers, which will lead to sea level to go up. Moreover, due to the rise of sea level, the survival of those people who live in islands and coastal cities can ultimately be threatened. Deforestation has been considered to be one of the most important contributing factors to global climate change. Also, since trees absorb greenhouse gases, reduce carbon emissions, and produce oxygen, without trees, the greenhouse effect can be improved tremendously. As World Resources Institute has pointed out in the data, forest loss contributes between 12 percent and 17 percent of annual global greenhouse gas emissions. Thus, what is “deforestation”? Why do people have to deforest? How does it affect environment?