Polar bears may disappear as the sea ice continues to melt. Thus, scientists intend to figure out why the global temperatures have risen, but that thus far they have not found the solution for global warming. A few scientists think global warming is natural; however, the majority of plentiful scientists think global warming is manmade because of emissions from transportation, air conditioning and
During this season they mate in the sea and give birth on land or ice floes. Changes in the climate are affecting them just as they are affecting other species in the arctic. Global warming may seem more realistic for a mammal living in the north than it does to humans living in urban regions. Some of the coldest spots on Earth have warmed up and continue to warm up which is resulting in centuries old ice caps melting, rivers running dry, and coasts eroding and as a result, threatening communities[1]. Winters are shortening and sea ice is diminishing at a rate of about 3% per decade.
Global warming not only affects the darker suntan you get each summer, but the winters, the sea level, and the natural environment delicately teetering on the current balance of temperature. One of the largest concerns, the rapid mass loss of Greenland’s icecap, points to faster flow of glaciers and surface melting that will inevitably lead to warmer oceans, less salty oceans, a raise in sea level, and potential climate changes. Greenland is reported to be melting at double the speed it was only some years back. The slow yet steady flow of glaciers towards the sea has transformed into a sudden surge forward, alarming researchers who predicted a slower shrinkage. An increase in precipitation on the inside, along with continual high temperatures has cause the snow to melt, and serving as a run off that not only adds to the ocean level, but acts as a lubricant for glaciers to slide faster.
The Earth’s average temperature has risen 0.6°C, while areas in the Arctic have risen up to 3.0°C in the last 20th century (Gardiner, 2008). Increasing temperatures have already caused changes in the Arctic such as; sea ice covering the Arctic has decreased in area and thickness due to melting of ice and snow, the warming of permafrost, snow cover area has also decreased, and ice on the rivers will freeze later during fall and break up earlier in spring. But why are these Polar Regions more vulnerable to climate change? This is due to the light colour of snow and ice and high albedo, which reflects the solar energy back into space. Due to the increase in greenhouse gases less solar energy is reflected back into space and more solar radiation is absorbed by the Earth causing the increase in ice and snow melting (Main & Ahlenius, 2011).
Yes, our earth is currently warming up, but who says this is a bad thing? Evidence has shown that it will be beneficial as it has in the past. Humans believe that they are significantly affecting the earth’s climate when it is most likely natural astronomical and earthly cycles. Really, through all of this substantiation, it may be confirmed that human activity does not bring about global warming and global warming is not a threat. Table of Contents
The change of temperature in Antarctica due to global warming has had many effects on wildlife and the environment already. Although these effects many not seem big right now, there are many that will progress and continue to change Antarctica’s environment, depending on how the temperature changes. Temperatures have been rising constantly in Antarctica. Last April was the second warmest April in history, only behind the year before that (Waldman). The whole world is experiencing global
Like any story in the media it started out small when people started to realize what we were really doing as people who are a part of the modern consumer society. Unfortunately, man’s quest in the past 30-40 years of expanding his grasp to the far reaches of the world have accelerated the clock on our glaciers and have left the future generations to deal with the consequences. Why this warming event is happening can be pointed to several sources. These sources are: the ever-increasing population in the world, impacts that have affected the more famous areas of glacier melting (Alps, Andes etc. ), the warming of climate change as well as industrialization of people.
Texts construct race as a natural category. Many representations generally describe the interests of dominant groups by defining other races as abnormal. Somewhere right now, there is someone being discriminated for the colour of their skin. Today’s society; you may say all you want about it being better than what is was like in the 1900’s to now but how much better is it really? Yes we have found many cures for severe illnesses and are now aware of Global Warming, which we are doing our best to prevent with renewable energy, but has anyone ever thought of the way people act throughout society?
As we are theoretically reaching “peak oil”, “peak gas” etc. as well as the occurring of global warming and a number of environmental issues, the call for more “clean”, “sustainable” renewable energy has been increasing dramatically. However, some critics argue that renewable energy such as wind, solar, biomass, alone can not sustain the world in the future. In this essay, I will argue that renewable energy is not a viable way for replacing established energy sources by analyzing the geographic and natural limitations, impacts on ecosystems and the efficiency on cutting greenhouse emissions of renewable energies. The real solution should be reducing energy consumption.
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.