In environmentalist Bill McKibben’s 2008 article, “Civilization Last Chance,” we are warned that we are in a state of emergency time we have little to save our environment from the danger. The current status of our earth is in danger, and people don’t seem to realize the serious consequence for the future. Robert W. Christopherson’s textbook, Geosystems, is an introduction to physical geography with scientific evidence. The current edition of Geosystems introduces the consensus science regarding human-created climate change. The high content of carbon causes global warming and global warming causes climate change.
There are many environmental ethical issues being studied today. One of the major issues is global warming. Global warming is said to have many negative effects on the environment. Global warming has been studied for a while now. I will be covering the aspects, causes and effects of Global Warming.
The issue that the relationship between human activity and climate change is increasing concerned. Climate change is probably the greatest threat to global ecosystem. Climate is the average weather and influencing by slow changes in features like the ocean, the land and the orbit of the earth about the sun. Attribution to natural and human factors, human activity, to some extent, plays an important role in climate change (UNEPWMO, 2004, P5). This essay clarifies several parts: how human activity influences the climate change, the role of human activity, the impact of natural events.
This essay will show the reason why we need renewable energies and two solutions to use them effectively. There are three main problems with the use of fossil fuels. Firstly, although they are the main sources for world energy supply，they are also the main cause of man-made climate change resulting from the CO2 emissions produced. The global carbon budget has shown that 87 percent of all human-produced carbon dioxide emissions come from the burning of fossil fuels like coal, natural gas and oil (Le Quéré, 1107-1157). The consequence of climate change is serious.
Unfortunately, the activity of burning or combusting fossil fuels releases various kinds of hazardous substances and pollutants which eventually leads to changes in the environment; such as climate change, global warming, and changes in environmental health. Let us start with the change in climate or climate change. For over the past 150 years, the burning of fossil fuels, such as coal and oil have caused the concentrations of heat-trapping "greenhouse gases" to increase significantly in our atmosphere. These gases prevent heat from escaping to space, somewhat like the glass panels of a greenhouse. It would change our climate, but it would not bring us close to the level of uninhabitable Venus.
Since sea level measurements were first recorded in 1870, global averages have risen almost eight inches. The annual rate of rise has been 0.13 inches over the past 20 years, which is close to twice the average from the previous 80 years. According to the Intergovernmental Panel on Climate Change (IPCC), sea levels are rising by 7mm a year, which is more than twice the global average.1 Scientists predict that sea level will continue rising for the foreseeable future. 2 Two major mechanisms are causing sea level to rise. First, the melting of ice caps and glaciers is releasing water into the oceans.
Global Warming, a Manmade Problem? Global warming, by definition, is the increase in the ocean and near-surface temperatures. Over the past few decades, there have been debates regarding whether global warming is real, whether it can be reversed, and how it is caused. Through research, scientists have discovered that global warming is, in fact, a real issue that is caused by increases in greenhouse gases (David). Now that global warming has been studied further, there is still debate over whether the increase in the greenhouse gases are caused by natural sources, such as volcanoes and forest fires, or if it is caused by man-made practices such as emissions from driving automobiles (David).
Since the temperatures have started to rise, the ice that they once lived on has melted and they are having a very difficult time surviving. People have increased the temperature of the Earth by contributing their pollution. Burning fossil fuels and forests has been the biggest issue amongst us all. Simple changes could help in simple ways but the fact is that since it is a global issue, the world has to be involved in order to make a difference. The United Nations has contributed in this way by holding meetings to discuss the climate changes throughout the world and what can be done to help.
Global warming has been an issue since factories were introduced to this world; gases and toxins are being highly exposed into our atmosphere causing a tremendous reaction to the balance of nature. This is where one ecological system cannot function without the other throwing off the equilibrium in the world, and causes bad weather patterns. Scientists since 1970 have been warning the government that automobiles and factories are emitting a high level of
Moreover, if we stabilized concentrations and the composition of today's atmosphere remained steady (which would require a dramatic reduction in current greenhouse gas emissions), surface air temperatures would continue to warm. This is because the oceans, which store heat, take many decades to fully respond to higher greenhouse gas concentrations. The rapid increase in carbon dioxide emissions observed during the last 250 years is expected to continue for several decades to come. Various scenarios have been examined, depending on factors like fuel use and efficiency. Even the best case scenario predicts further increases in carbon dioxide emissions until about 2040.