Carbon Sequestration in Forest Ecosystems Amid growing concerns about increasing concentrations of greenhouse gases in the atmosphere, mitigation techniques that reduce levels of greenhouse gases are receiving attention as a possible remedy for climate change. Forest ecosystems play an important role in the global carbon cycle, but there are still questions about how significant of a role they play and how manipulating management plans affects a forested area’s carbon sequestration potential. Various factors such as land-use history, age of a forest stand, and potential feedback processes must all be taken into account when determining if forests are a feasible method of climate change mitigation. The implications of forested areas providing a low-cost method of carbon sequestration with multiple auxiliary benefits are a subject of interest for scientists and policymakers searching for solutions to the global climate crisis. The observed increase in global greenhouse gas emissions is cited as a likely cause of the recorded increase in global average temperatures following the Industrial Revolution (Intergovernmental Panel on Climate Change [IPCC], 2007). Carbon dioxide is considered to be the most significant anthropogenic greenhouse gas; between 1970 and 2004, its emissions grew by 80% primarily due to fossil fuel use and land- use changes (IPCC, 2007). Although there are many naturally occurring sources and sinks of carbon, anthropogenic forces have resulted in a shift in a historically balanced system towards a scenario where emissions are now significantly greater than earth’s ability to act as a carbon sink. In order for the carbon cycle to return to a balanced state, there must be decreases in the levels of carbon em... ... middle of paper ... ... to help offset carbon emissions can serve as a tool with multiple benefits. Not only will managing forests for carbon sequestration decrease levels of carbon dioxide in the atmosphere, it will also provide the multiple beneficial ecosystem services forests have to offer such as water filtration, erosion prevention, and wildlife habitat. Estimates of the magnitude of carbon sequestration forests can provide vary and are affected by factors such as limiting resources and management practices that are complex and difficult to predict. However, there is no question that carbon sequestration in forests will play a small but significant role in mitigating climate change. If the climate crisis is to be solved, scientists and policymakers must use every tool at their disposal, including taking advantage of earth’s natural processes, such as forest carbon sequestration.
Forests cover 31% of the land area on our planet. They produce vital oxygen and provide homes for people and wildlife. Many of the world’s most threatened and endangered animals live in forests, and 1.6 billion people rely on benefits forests offer, including food, fresh water, clothing, traditional medicine and shelter (drug war facts, Page 1).
Since measurements began in 1958 -- and it can be assumed to have been the case since the industrial revolution -- emission of carbon dioxide into the atmosphere has risen steadily as a result of the burning of fossil fuels (Quay, pp 2344). Although there is much argument over the implications of increasing carbon dioxide levels in the atmosphere, there are several points that almost all scientists would agree on: firstly, carbon dioxide acts to absorb radiated heat; if present in our atmosphere will do just that to some extent. Second, the concentration of carbon dioxide in our atmosphere is rising. Third, the temperature of the planet is rising - although the amount of this increase and the causes of this rise are subject to disagreement (Philander, pp 193).
The Industrial Revolution was not only a turning point in the progress of human history, but the start of a great change in the Earth’s environment. Technological advances in industry and mass migration into urban areas led to a rising demand for energy sources, a demand met by fossil fuels. Casper, J. (2010) describes coal as ‘symbolic of the beginning of the Industrial Revolution’, the increased combustion of these ‘dirty’ fossil fuels further polluted the air and enhanced the volume of Carbon Dioxide (CO2) in the atmosphere. Changes in land use attributed to population rise, reduced the amount of photosynthesising biomass on Earth, diminished an important ‘carbon sink’ and concluded to enhance the Greenhouse Effect.
The Kyoto Protocol set by the United Nations allocates countries to offset their greenhouse gas emissions by growing what they lost, that is reforestation, and/or establishing a forest in a barren land, that is afforestation. Each country is allowed a certain quota that limits their greenhouse emissions. For companies that uses deforestation for commercial purposes must reforest the land they cut off to compensate for the loss. More often than not the land is left alo...
This rainforest is also a great ‘carbon sink’. It has many photosynthesis plants and this allows the control of carbon dioxide (CO2). The plants take in the CO2 from the atmosphere and return oxygen (O2). b) Logging has impacted this ecosystem. There are trees that are hundreds of years old and their timber is being pushed to be sold for high prices.
One of the most compelling and difficult environmental problems society faces today is climate change. People do not realize how much the environment has changed for the worse in the last ten years, until they are told that the last two decades of the 20th century have been the hottest in the last 400 years, according to climate studies (Conserve Energy Future). Today, the carbon dioxide levels have reached 396.81 parts per million (ppm). “Carbon dioxide (CO2) has also increased over the last 100 years-- from about 300 ppm to 370 ppm. Interestingly, the majority of these additions have occurred in the last 50 years, when temperature increases have been the slowest” (geocraft).
Restate thesis: In reality forests are better left alone, forests provide the earth with a regulated climate, strong biodiversity, and good nutrient rich soil for plants to strive on.
Everyone needs to respire in order to live, which includes plants and animals. Trees and plants help to regulate the carbon cycle. When the trees take in the carbon dioxide from the environment, they give back to oxygen. When trees are cut down, there is a break in the carbon cycle, and there is no exchange in both oxygen and carbon dioxide which causes a spike in carbon dioxide levels. When these occur carbon dioxide moves in the atmosphere and stores there as a greenhouse gas. “However, deforestation still remains the second leading cause of greenhouse gas emissions, just behind industrial emissions” (Culas). Greenhouse gases disturb the normal regulation of the weather. When greenhouse captures and stores heat problems occur. When the carbon dioxide levels in the greenhouse gases are increased, then the atmospheric conditions becomes unstable, which causes global warming. Global warming is the increase in the temperature of the earth, which is mostly caused by the greenhouse effects. Global warming present itself by affecting the environment by causing drought, floods, change in ecosystem, less fresh water available and other environmental issues. Trees play a big role not only in keeping the soil rich, regulating the water table, providing a stable anchor for soil to lessen soil erosion and providing nutrient rich soil for agriculture but it also helps in the absorption of carbon emission in the atmosphere.
Rainforests once covered 14% of the worlds land surface, however now it only covers a mere 6%. It is estimated that all rainforests could be consumed in less than 40 years. Trees are becoming more needed and used everyday. We need them cut down for many reasons such as paper and timber, while also needing them ‘untouched’ for other reasons like oxygen, we have to ask ourselves, which is more important? At the current rate, most of the rainforests are being cut down for resources like paper and timber, but less importance is being placed on main resources like oxygen.
The forests around the world a supply a plethora of community amenities and commercial goods , nevertheless forested terrain progressively is becoming transformed to accommodate other uses, including cropland, pasture, mining, and urban areas, which can produce superior private financial returns. The wide array of benefits the forest provides that vanish directly tied to deforestation have resulted in several policies drafted with the sole intention to reduce the frequency of deforestation. This paper has two primary objectives. First, this paper will review and summarize both the preceding and current research on deforestation. Second, it will emphasize the significance of future research and development, as well as other solutions needed
The commonly debated “greenhouse effect” refers to “the global average temperature increase that has been observed over the last one hundred years or more” (Spencer). President Barack Obama addressed the issue in an effort to highlight its severity, "We have to all shoulder the responsibility for keeping the planet habitable, or we’re going to suffer the consequences – together” (Leader). The earth’s increasing atmospheric and oceanic temperatures result in climate changes due to cumulative amounts of carbon dioxide (CO2) in the atmosphere. As an outcome, researchers around the globe have established that the by-product of burning fossil fuels is the main culprit of the increasing temperatures. Global carbon emissions from fossil fuels have significantly increased since 1900, as shown above from a study carried out by the Carbon Dioxide Information Analysis Center.
The emission of green house gasses due to human activity contributes the most in increasing global warming. Today, fossil fuels are used as a source of energy for transportation, electricity, industrial process and to increase human comfort in this era. Over the last decade humans have created mass amount of industries. These industries have been burning fossil fuels such as coal, which release carbon dioxide and carbon monoxide; carbon dioxide absorbs heat that raises the temperature of the earth. More than 80% of carbon dioxide comes from tr...
In 1927, for the first time in history, the world’s population reached two billion people. In 2011, less than one hundred years later, it passed seven billion (Worldometers). Some may think that this is a positive increase, creating economic growth and significant innovations in fields such as agriculture, industry and medicine. However, the amount of difficulties our species will encounter over the next century because of this population increase, will greatly outweigh those few optimistic beliefs. For example, twelve to fifteen million hectares of forest are lost every year, the equivalent of thirty six football fields per minute (World Wildlife Fund). In 2011, there were an estimated nine and a half billion metric tonnes of carbon emissions put into our atmosphere (CO₂ Now). The list could go on and on, but ultimately, these are all just contributors to what might be humanity’s most challenging problem yet: climate change.
... is by replanting trees and other plants. That’s going to make it a lot easier to get rid of some of that extra CO2 in the atmosphere. There are many nations and communities that have started to reforest the wildlife and many others need to take charge and do the same in order to truly make a difference (Chiras).
One of the most evident problems associated to the environment is the issue of the logging of trees, mainly in undisturbed places such as the Amazon basin. Trees are considered the lungs of the Earth. They recycle all the polluting carbon in the air and return oxygen back into our atmosphere, creating a stable cycle of carbon in our atmosphere. However, the impeccable rates which trees are being cut down in our forests have grown to ever increasing and alarming rates. Trees that are made way for farming are burnt up releasing deadly amounts of carbon and thus leading to the problem of global warming. As its names suggest the world is slowly warming up and without any notice the environment which God has gave us will be slowly eradicated. The daily lives which humans carry on about every day are also a factor influencing on our environment and global warming. By driving cars that have a thirst for petrol we are releasing carbon dioxide and furthermore impacting on the world?s climate. In Australia environmental impact has always been evident. Land clearing especially in places such as Queensland has caused land to lay dry and lifeless where all forms of life is destroyed. By clearing land we are not only affecting our climate but are also destroying animal habitat and the usage of the land. Senseless actions by commuters in Australia, emitting tons and tons of lethal gases vulnerable to the atmosphere are starting to take its toll on our climate. We are seeing a harsher climate and at the same time less rain. If we want to preserve our world we must take a stance on this issue and take action for what is right, not carrying on the actions that will lead to a desolate, destroyed Earth.