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Human activity is primarily responsible for global climate change
Human activities that cause global warming
Global warming caused by human activities
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Human activities contribute to climate change by causing changes in the atmosphere in the amounts of greenhouse gases, aerosol, and cloudiness. The largest known contribution comes from the burning of fossil fuels, which releases significant amounts of carbon dioxide into the atmosphere. Greenhouse gases and aerosols affect climate by altering incoming solar radiation and outgoing infrared radiation that are part of the earth’s energy balance.
Changing the atmospheric abundance or properties of these gases and particles can lead to a warming or cooling of the climate system. The buildup of greenhouse gases in the atmosphere has led to an enhancement of the natural greenhouse effect. It is this human-induced enhancement of the greenhouse effect that is of concern because of ongoing emissions of greenhouse gases that have the potential to warm the planets climate to levels that have never been experienced in the history of human civilization. Such climate changes are a major issue to environmental concern in the concepts of the potentially dangerous effects it will have on the ecosys...
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).
Earth’s climate is determined by the physics and chemistry of its atmosphere. Earth’s atmosphere consists of four layers; troposphere which is closest to earth, stratosphere, mesosphere, and thermosphere. Hardy says, “During the past 100 years we humans, as a result of burning coal, oil, and gas and clearing forests, have greatly changed the chemical composition of the thin atmospheric layer.” There is more carbon dioxide in the atmosphere due to burning fossil fuels. The atmosphere is made up of many gases such as nitrogen, oxygen, and argon. It also consists of trace gases such as carbon dioxide, methane, carbon monoxide, nitrogen oxides, chlorofluorocarbons and, ozone. The trace gases have the greatest effect on our climate (Hardy 5). Up to a certain level, these gases help to keep the planet warm by absorbing certain infrared wavelengths, so that there can be life on the planet. Thus, they trap heat in the troposphere and stop it from escaping to space (Hardy 7). Therefore, the greater amount of greenhouse gases, the more heat trapped in the atmosphere. Earth’s temperature is increasing due to increased levels of greenhouse gases such as carbon dioxide released into the air from burning fossil fuels. The Intergovernmental Panel on Climate Change (IPCC) 2001 report projects “global average surface temperature increases ranging from 1.4 to 5.8 degrees
In theory some parts of the world might benefit, from a human point of view, due to global warming. However, at current rates of warming, local ecosystems will collapse and any objective measure of global benefits versus suffering would show much more suffering than benefits gained.
The evidence clearly provided in this essay strongly supports the argument that greenhouse gases caused by air pollution are the main cause of anthropogenic climate change. The tables and graphs demonstrate just how greenhouse gases contribute to climate change. As is evident, climate change is an ever growing problem globally. Due to the increase in anthropogenic air pollution, greenhouse gases have amplified also, as shown by table 2. Figure one shows how carbon dioxide in the atmosphere has increased exponentially, mirrored by anthropogenic emissions of carbon dioxide. The various examples described clearly support the argument that greenhouse gases caused by air pollution are the major anthropogenic causes of climate change.
An English major with a minor in Meteorology, I have a huge passion in learning about the weather. I love doing research on all aspects of the weather, but one topic has remained controversial for years and that is the cause of global warming. I decided to do some research on the issue in hopes of coming up with some type of conclusion based on the facts that I am able to find. The question always arises as to whether humans are to blame for our current global warming. Do humans in fact pose a threat to the global warming crisis and are they to blame for the slow increase in temperature of the earths atmosphere? Before one can begin to argue the facts whether or not humans have an influence in the condition of our atmosphere, one must first learn exactly what global warming is.
Volcanic activity also causes the release of certain elements that may block the sun and also contribute to the increase of greenhouse gases in the atmosphere. The most destructive human contribution to climate change is fossil fuel combustion, which results in the release of carbon dioxide and other greenhouse gases into the atmosphere. Increased carbon dioxide, methane, nitrous oxide and halocarbon levels in the atmosphere cause an imbalance in the earth’s energy. This is because the gases alter solar radiation and thermal radiation, which regulate the earth’s energy.
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 average surface temperature on Earth has increased approximately 1.0°F in the past century, and it is projected that it will again increase somewhere two and nine degrees by the year 2100. This is the expected effect of increased greenhouse gases, which contain the Sun's energy (heat) in the lower atmosphere (troposphere). Much of the increase in these gases can be considered a natural occurrence, however, at least some of it is human induced. The depletion of the ozone (O3) layer is negatively affecting our ecosystem, by way of global warming and climate change.
As we approach the future we are faced with many global problems. Most of these problems arise because we have caused them ourselves. We need to face these problems and find a solution. Global warming, although most often overlooked in importance, is a crucial problem of the future directly related to human activities. Global warming is caused by gases humans release into the atmosphere called anthropogenic gases and by deforestation. Anthropogenic gases include carbon dioxide, methane, chlorofluorocarbons (CFCs), hydrofl...
The debate on global warming (anthropogenic warming) creates many disputes. The one thing these arguments cannot dispute is the fact that there is an increase in potent gases entering our atmosphere. Since 1750 when the concentration level was about 280 parts per million (ppm) to an even h...
Scientists, economists, and policy makers all agree the world is facing a threat from climate warming. Climate warming is caused by excess greenhouse gases such as carbon dioxide, which are heat trapping gases. Human use of fossil fuels is a significant source of these gases. When we drive our cars, heat our homes with oil or natural gas, or use electricity from coal-fired power plants, we contribute to global warming. Including any loss of trees or forests also contributes, considering trees convert carbon dioxide to oxygen.
Climate changes occur in our earth's atmosphere due to a buildup of greenhouse gases. Greenhouse gases can occur naturally as well as a result of human activities. The greenhouse gases are carbon dioxide, methane, and nitrous oxide. “Carbon dioxide is released into the atmosphere when solid waste, fossil fuels, and wood are burned.” (2) The gases help to warm the surface of the Earth. Each greenhouse gas absorbs heat differently. If natural gases did not occur, the temperature of the earth would be considerably cooler. “Problems can occur when higher concentrations of greenhouse gases are present in our atmosphere because they have enhanced our earth's heat trapping capability.” (3)
The gradual increase in our atmosphere’s average temperature is causing concern that erratic weather patterns and severe natural disasters will become more frequent around the world. Climate scientists continue to provide evidence that this increase is due to greenhouse gas emissions from human activity. This poses major challenges for the natural environment and for the communities. It could
Human activities such as pollution and deforestation, has changed the climate as a whole, leading to an increased amount of greenhouse gases such as carbon dioxide to enter the atmosphere. The effects of this has led to higher sea levels, loss of sea ice and an increase in heat waves across the globe.
Global Warming One of the most substantial problems in the world today is global warming. This gradual warming of the earth is in occurrence at an extremely slow rate but it is happening. Many scientists believe that as human’s work and release greenhouse gases into the earth’s atmosphere, it can become dangerous for the long lasting life of humans and our environment. “Unless we take immediate action, the impacts of global warming will continue to intensify, grow ever more costly and damaging, and increasingly affect the entire planet - including you, your community, and your family” (“Global Warming Impacts”).