Human Activity Over The Last Century - 1208 Words

Human activity over the last century have caused major detrimental changes to the climate with carbon dioxide and other greenhouse gases being emitted into the atmosphere. These changes to the worlds ecosystems and could involve key human health problems. There is worldwide scientific consensus and proof that climate change is real, evidence proves there has been 7 cycles of glacial advance and retreat, since the beginning of the modern climate 650,000 years ago. The evidence of our changing climate is from many forms of data collected over years ago [EV]. According to this evidence, we are exponentially increasing the rate of temperature at which Earth is heading for. Greenhouse gases are poisonous gas compounds that have been trapped in†¦show more content†¦Carbon dioxide, is released through both natural and physical processes and has increased by more than a third since the industrial revolution [C]. The burning of fossil fuels releases a significant amount of carbon which bonds with oxygen within the atmosphere, forming carbon dioxide [C]. In addition, the atmosphere has just surpassed a concentration of 400 parts per million of carbon dioxide, a concentration that Earth hasn’t seen in missions of years [SA]. Although carbon is one of the primary greenhouse gases that the atmosphere but however, there are many other gases that contain a threat to our environment, those include methane, chlorofluorocarbons (CFCs), nitrous oxide and water vapor [E]. Methane is a more active greenhouse gas but it is less abundant. It can be produced naturally and by human activity emitted from waste sites, agriculture farms, and rice cultivation industry[C]. One major reason behind the release of methane is the production of oil and gas from fracking, which releases methane into the ground surface and leaches into surrounding water ways. Nitrous oxide is another powerful greenhouse gas produced by human activity by agriculture, fossil fuel combustion, organic fertilizers. Since the massive rise of population, the global demand has increased these levels for the production of agriculture needs and fertilizers. These greenhouse gases areShow MoreRelatedThe Effects Of Climate Warming On The Earth972 Words   |  4 Pagesretreat within the last 650,000 years. One of them being the last ice age that abruptly ended about 7,000 years ago which marked the beginning of modern civilization. The changes in climate are normally caused by slight variations in the orbit of the Earth around the Sun which causes there be an increase or decrease in the amount of solar energy the planet absorbs. Today, ninety-seven percent of scientist agree that the current climate-warming that has occurred over the past century is most likely dueRead MoreHumans And The Climate By Wendy Diep1617 Words   |  7 Pages11:628:125:90 â€Å"Humans and the Climate† Wendy Diep December 18, 2014 â€Å"Humans and the Climate† â€Å"Global warming, along with the cutting and burning of forests and other critical habitats, is causing the loss of living species at a level comparable to the extinction event that wiped out the dinosaurs 65 million years ago. That event was believed to have been caused by a giant asteroid. This time it is not an asteroid colliding with the Earth and wreaking havoc: it is us.† This is the statementRead MoreE Ice Age : A Of A Ge Intermediate1612 Words   |  7 Pageshttps://www.skepticalscience.com/heading-into-new-littl e-ice-a ge-intermediate.htm Last viewed:2/10/15 A few centuries ago there was a Mini ice age dubbed little ice age. Some believed major contributors-large volcanic eruption and ‘lower solar output’(less solar activity). Solar activity has been rapidly decreasing (2009 lowest in a century). More CO2, less insulation needed to drop. 2009 is the lowest solar activity level in over 100 years. It would take 2.6 million years for the world to enter an interglacialRead MoreClimate Change : Global Warming1715 Words   |  7 Pagesintensified because of human activity; however, the circumstance is quite the opposite. Global warming refers to the rising surface temperature, whereas climate change includes warming and the effects - like melting glaciers, heavier rainstorms, or more frequent drought (Kennedy and Lindsey). Human produced gases play a factor in global warming but humans are not responsible for climate change because global warming only represents one aspect of climate change. Although human activity plays a part i n globalRead Moreâ€Å"Up and Down, Up and Down – That Is How Temperature and Climate Have Always Gone in the Past and There Is No Proof They Are Not Still Doing Exactly the Same Now. in Other Words, Climate Change Is an Entirely Natural1451 Words   |  6 Pagesbetween the two, and that the Earth is just going through its natural cycle. Over the last century global temperatures have increased rapidly, and this period has been called global warming. However many have disputed how this rapid increase in the change in the temperature have been brought about. There is a general agreement among scientists that the changes in the climate over the last century are as a result of human activities. They have reached this consensus as they have been able to link the suddenRead MoreThe Debate On Global Climate Change1605 Words   |  7 Pagesthat human-generated greenhouse gas emissions are too small to substantially change the earth’s climate and that the planet is capable of absorbing those increases. It is contended that warming over the 20th century resulted primarily from natural processes such as fluctuations in the sun s heat and ocean currents. But the theory of human-caused global climate change is based on questionable measurements, faulty climate models, and misleading science. In the first half of twentieth century it wasRead MoreGlobal Warming And Climate Change1175 Words   |  5 Pagesthe last 50 years, when human activity has grown fastest and observations of the troposphere have become available. The dominant mechanisms are anthropogenic, i.e., the result of human activity. They are: increasing atmospheric concentrations of greenhouse gases global changes to land surface, such as deforestation increasing atmospheric concentrations of aerosols. There are also natural mechanisms for variation including climate oscillations, changes in solar activity, and volcanic activity. AccordingRead MoreAre Humans Culpable For Global Climate Change?1334 Words   |  6 PagesAre Humans Culpable for Global Climate Change? Earth, a vibrant blue sphere in the solar system, is the only planet in the solar system that is currently known to host a multitude of life. Everything needed to survive and thrive is provided under a thin veil of atmosphere that separates all terrestrial organisms from the vast, frigid void of space. Earth is made up of intricate, collaborating systems that are often unpredictable. Land, water, air, and life-bearing organisms, including humans, collaborateRead MoreGlobal Warming And Its Effects1261 Words   |  6 Pageschange the Earth immensely in a matter of time. Made by human activity,global warming, including the burning of fossil fuel, and blazing down forests. Yet scientists can detect how much the Earth’s temperature is increasing, but countries can fix these problems by not depending on natural resources so much, reusing energy, and setting policies for climate change to help the public regulate it. The rising heat has been occurring for centuries, but never enough to really affect us until the boilingRead More Global Warming and Greenhouse Gases Essay641 Words   |  3 PagesGlobal Warming and Greenhouse Gases The earth’s climate is predicted to change because human activities are altering the chemical composition of the atmosphere through the buildup of greenhouse gases –– primarily carbon dioxide, methane, and nitrous oxide. The heat-trapping property of these gases is undisputed. Although uncertainty exists about exactly how earth’’s climate responds to these gases, global temperatures are rising. Go to the Emissions section for much more on greenhouse gases