What is Global Warming?
When speaking of the term global warming, we are referring to a consistent recently measured rise in the average temperature of the planet (i.e. at global scale). However, neither the rise in temperature nor the related impacts on atmospheric and oceanic circulation are likely to occur uniformly across the globe at the same time. Since 1971, 90% of the global warming has occurred in the Earth’s oceans. Despite the oceans' dominant role in energy storage, the term global warming can also be used to refer to increases in average temperature of the air/sea on the Earth's surface. Since the early 20th century, the global air and sea surface temperature has increased by roughly 0.8 °C, with about 2/3 of the increase occurring since the year 1980. Each of the last three decades has been successively warmer at the Earth’s surface than any preceding decade since 1850.
Why can Global Warming be considered the earth’s greatest issue?
There are several reasons as to why global warming can be can be considered the world’s greatest hazard. Global warming has been considered an increasingly serious problem for our planet. The main reason we can consider it as the greatest hazard is because it is a global issue, meaning the effects of global warming will protect everyone and everything on the planet. Many Governments, corporations, and individuals around the world are debating the reality of global warming, and working on solutions. Global warming is likely to continue for centuries, and that it is already too late to stop some of the serious consequences it will bring, such as those that have arguably already started to take place (melting ice-caps). The effects of global warming are the ecological and social changes caused by the rise in global temperatures. There is a scientific consensus that climate change is occurring, and that human activities are the primary driver. Evidence of climate change includes the instrumental temperature record, rising sea levels, and decreased snow cover in the Northern Hemisphere. According to the Intergovernmental Panel on Climate Change (IPCC), most of the observed increase in global average temperatures since the mid-20th century is very likely due to the observed increase in human greenhouse gas concentrations. Projections of future climate change suggest further global warming, sea level rise and an increase in the frequency and severity of some extreme weather events. Human activities have contributed to a number of the observed changes in climate - human-induced warming could lead to large-scale, irreversible, and abrupt changes in physical systems. An example of this is the melting of ice sheets, which contributes to sea level rise. The probability of warming having unforeseen consequences increases with the rate, magnitude, and duration of climate change. Observations show that there have been changes in weather. As climate changes, the probabilities of certain types of weather events are affected. Changes have been observed in the amount, intensity, frequency, and type of precipitation. Widespread increases in heavy precipitation have occurred, even in places where total rain amounts have decreased. Since the 1950s, it is very likely that the number of cold days and nights have decreased globally. There have been other changes in climate extremes, e.g., floods and tropical cyclones, but these changes are more difficult to identify. As we previously stated, human influences appear to have contributed to some of the observed changes. Future climate change will very likely be associated with more very hot days and fewer very cold days. The frequency, length and intensity of heat waves will very likely increase over most land areas. It's likely that the average maximum wind speed of tropical
Global Warming Paper Cameron Conolly For years many people have believed that we are causing the Earth to warm up faster. Global Warming is the heating of the climate. Others believe it is due to natural climate processes. Either way, we know that Global Warming is a serious issue for our Earth. One of the reasons we think Global Warming is occurring is because of Orbital Variations. “Orbital Variations” is part of a theory developed by Milutin Milkankovic. An astonishing fact about Milankovic…
Global Warming Jenny Mallory Argosy University Rise of Modern Science Following years of debate publicly on whether global warming is due to natural activities or is the result of mankind, evidence suggests that extreme climate and weather changes are caused by humans. Over the years, the earths’ climate has wavered many times, from periods of record breaking heat to the ice ages. Changes in the sun’s force and the earths’ course around it, along with natural elements such as; erupting volcanos…
SPC 1016 November 06, 2008 Specific purpose: To convince my audience that global warming does exist and we can help put a stop to it. Introduction I. What would you do if someone tells you that the foundation of your home is sinking? Would you try and fix it or would you let it sink slowly? II. Today, I am going to help you recognize that global warming does exist, we are the main cause and we can do something to stop this. III. It is important we all know this because before we know…
GLOBAL WARMING: NATURAL OR MAN-MADE There is no question that there is an increase in Earth’s temperature and we are experiencing what is referred to as global warming. The Earth has experienced this many times in history on a much larger scale, but, humans did not exist (and would not have been able to exist) at the time. The questions now are whether human actions are accelerating the process of global warming and possibly decreasing Earth’s future sustainability; and, if so, what, if anything…
Global Warming and the Threat on the Existence of Life on Earth Lise Scott AIU OnlineAbstract Global warming is a very complex subject with much debate involved with the subject. Although some people do not see global as a threat to all life on Earth, it is a very serious problem, because of warming temperatures including the melting of the polar ice caps and ice sheets, extreme weather patterns, including tornados and hurricanes. If the human race do not curb the problems of carbon emissions…
Global Warming Global Warming has become quite an alarming issue in the past decade. Although most people don’t find it directly affecting their everyday lives. This is the reason not much is being done about it. Some people are in complete denial of this phenomenon, while others are positive it is happening. I personally, believe global warming is happening. My argument is to prove global warming exists. It exists because of society’s everyday habits to use natural resources at an increasing rate…
Global Warming Real or Fake? Global warming is the slow increase of the temperature of Earth’s atmosphere. It is caused by the greenhouse effect which is caused by the increasing levels of carbon dioxide, CFCs, and other pollutants. Another thing that is causing global warming is methane from agriculture and animals. Also the increase of chemical fertilizers contributes to global warming. Chemical fertilizers are nitrogen rich. Nitrogen oxides have 300 more times the heat trapping capacity…
GLOBAL WARMING Global warming, also called climate change, has become a topic of concern over the past decade. Climate has changed drastically over the past decade, “From 2001 through Feb, 2011 the atmospheric carbon dioxide increased by 22.2% of the total increase from 1800 to 2001” (Pangburn). Although I wasn’t completely aware of global warming and it’s circumstances until recently, I can honestly say that it is a issue to be concerned about. Global Warming is an indisputable…
GLOBAL WARMING: NATURAL OR MAN-MADE There is no question that there is an increase in Earth’s temperature and we are experiencing what is referred to as global warming. The Earth has experienced this many times in history on a much larger scale, but, humans did not exist (and would not have been able to exist) at the time. The questions now are whether human actions are accelerating the process of global warming and possibly decreasing Earth’s future sustainability; and, if so, what, if anything…
What Are the Causes of Global Warming? What is global warming? According to NASA Earth Observatory, global warming is the unusually rapid increase in Earth’s average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels. Global warming is the warming near the earth's surface that results when the earth's atmosphere traps the sun's heat. The earth is getting warmer. The changes are small, so far, but they are expected to grow and speed…