The second step in the process of global warming in the Arctic is therefore the melting of ice and snow. Due to the increase in anthropogenic chemical emissions, the greenhouse effect is exacerbated. The exacerbation of the greenhouse effect then causes a rise in surface and atmospheric temperatures. Due to the rising atmospheric and surface temperatures, snow and ice in the Arctic begin to melt. The melting of snow and ice in the Arctic leads to several unfortunate consequences. First, sea levels begin to rise as the ice melts. Rising sea levels can cause major upheavals in climate: not only can flooding occur, but also droughts. Regions that are not used to heavy rainfall might receive increased precipitation due to the patterns of evaporation and wind currents. Second, the melting ice and snow cause what is known as positive feedback mechanisms.
Positive feedback due to global warming in the Arctic mainly implies that the melting ice leads to an increased amount of solar radiation reaching the earth, which in turn creates warmer temperatures. Normally, ice and snow reflect solar radiation (heat) back into space. Less ice means less radiation being reflected away from the surface of the earth. Less radiation being reflected from the surface of the earth means that more radiation is being absorbed by the earth: hence, global warming. Secondary positive feedback mechanisms include the fact that frozen soils begin to melt, which cause a rapid shift in the world's ecosystems. Shifting ecosystems can cause a wide range of problems for human beings, as food sources change. Another reason why the Arctic is extremely susceptible to global warming, and thus responsible for most of the damage, is that dry Arctic air...
Arctic foxes are also threatened by global warming since they rely on frozen seas for their survival during the bleak winters. Since there are fewer predators and food for the foxes is easily available for them as compared to the land. Therefore global warming poses as a challenge for their survival in the sea (Adam, 2008). Dependant fish species like polar cod are also threatened by global warming, arctic and
Global Warming -- it Is Authentic, but Why So Many Skeptics? The phrases "global warming" and "climate change" have become household words over the past twenty years or so, and given the vast amount of discussion and research, and the clear signs that the planet is hearing up, an alert citizen can safety predict that this topic will become even more prominent in American society. What are the latest results from
Global Warming, United States and the World There are concerns that the natural ecosystem and human society is not capable of handling rapid changes in climate. Trying to deal with this challenge in a proper manner, a number of international treaties have been drawn up and many different activities have been arranged. In the year 1994, the United Nations Framework Convention on Climate Change (UNFCCC) came into being. Since that year,
Global Warming Climate and Weather Local or regional climate is the measure of the conditions of the atmosphere in a specific area over a long period of time while global climate is a measure of the conditions of the atmosphere over a long time period worldwide. Weather is what conditions of the atmosphere are over a short period of time in a specific area or region. According to the National Aeronautics and
Global Warming Argument FACT OR FALLACY Critical Thinking World Health Organization (2013) reports that, in the last century, the earth's warmth increased by approximately 0.75 degrees C. And further at more than 0.18 degrees every decade in the last 25 years. This phenomenon, called global warming, is said to result from the greenhouse effect whereby deleterious gases, such as carbon dioxide, trap heat within the earth's atmosphere instead of getting released. A steady
C. Global warming and plants Global warming has direct impact on plants and this is something that will be passed on to human beings and animals. Because of elevated carbon dioxide levels plants normally produce chemicals that help in breaking down cyanide gas and lower the levels of protein. D. Global warming and the habitat Areas that were initially arable will eventually become unarable because they would be too wet or too hot
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