On Thin Ice written by Susan McGrath explains the negative affects of global warming on polar bears. Green house gases being emitted into the atmosphere is causing the earth to become hotter. The ice that the polar bears live on continues to shrink because of rising temperatures. In 1979, there was approximately thirty percent more ice in the summer compared to now. Polar bears spend almost their entire life on the sea ice (McGrath).
As the weather is up and down, cold one day and then extremely hot the next, no matter the short changed in weather, climate is a huge deal breaker for the future of the polar bear. Are humans responsible for the future of the big white bears that roam around on ice all day trying to survive? Maybe we are, maybe we are not, but polar bears are diminishing due to fluctuating environmental changes, gas and oil activities like drilling in the Atlantic Ocean, and their survival rate is decreasing as a result of starvation. Climate change has been one of the top leading causes of sea ice loss. According to Polar Bear International a study found from satellite pictures starting from the 1900s to now show major sea ice loss.
More extreme weather occurs, such as heat waves and droughts. The Arctic Region is especially sensitive to global climate change. According to the data in recent decades, the temperature in the Arctic has increased by more than 2 degrees centigrade in the recent half century (Przybylak 316). Climate change has led to a series of environmental and ecological negative
One of the biggest problems the world faces today is global warming. It refers to an increase in average global temperature that causes change in climate and affects other resources in the world. Global temperatures have significantly increased over the past few decades. According to the Global temperature statistics by NASA, the average temperature has increased from -0.22 Degree Celsius in 1880 to +0.56 Degree Celsius in 2012 (NASA, n.d.). This essay will examine the main effects of global warming by looking at the threats to wildlife and habitat, rise in sea level, and health impacts on humans.
Global warming is a war that we should not get involved with because we will lose if changes aren’t made soon. Global warming is the rapid increase in earth’s average surface temperature over the past century due to the fact that greenhouse gases are being released into the atmosphere increasing the earth’s average temperature (EarthObservatory.NASA.org). There are many contributing factors that play a role into the cause of global warming. Greenhouse gasses are gasses such as Carbon Dioxide, Methane, Nitrous Oxide, and F-gasses that trap heat in the atmosphere. The heat that is trapped in the earth’s atmosphere is a slowly melting glaciers, cause sea levels to rise and is messing with the weather patterns.
Many animals in the wild cannot adapt to the quick change in temperature resulting in the decrease of wild life. For example in Antartica the ice is melting dramatically which leads to the penguins to die out because they cannot live without the cold ice “(Global Warming Interactive)”. This being the ice is also the habitat for the living penguins so when there is no place to live the penguins have no chance to reproduce to keep the population alive. With all the ice melting natural disasters are more likely to occur. For example floods are going to increase due to the sea level rising from the melted ice.
Global warming is a major problem around the world that many people choose to remain blind to. This disaster is effected many ecosystems like the polar ice caps and ocean currents. Global warming is affecting humans more than you think a little extra heat could cause. Unfortunately, this problem cannot be fixed but there are simple things that you can do to help slow down the slow process. Scientists have discovered that animals the live at the North Pole have recently became in grave danger.
For a example, polar bears who live in the icy regions are losing their habitat and many are destroyed due the melting of large regions of ice in the polar regions. In many regions of the world the weather patterns have vastly changed, causing strong hurricanes and storms that are destructive. Most of these storms and hurricanes are caused due to the temperature rise in the sea. This also kills corals reefs. One other major problem with Global Warming is water scarcity.
1) Higher Temperature During the 20th century both air and sea temperature has increased and causing several problems. The increase in temperature has caused damages to our eco system. In some countries temperature has increased by a few degrees. In winter, in places where it was cold, now the temperatures has increased and even the sea temperatures have increased, which is melting the Iceberg and destroying the marine life. Scientists projected that if emissions of heat-trapping carbon emission aren’t reduced, average surface temperature could increased 3 to 10 degrees Fahrenheit by the end the century.
“Those searching for unmistakable evidence of the global climate crisis should pay a visit to the Arctic. The Arctic is warming twice as fast as the rest of the world. The average annual temperature in Barrow, at the northern-most tip of Alaska, has increased 4.5 degrees Fahrenheit in the last 50 years” (Noblin, n.d.). Polar bears have been threatened in the past by unregulated commercial and sports hunting in the 1960’s and 1970’s. They were being wiped out quickly with modern methods of hunting, including aircraft, and were facing a huge loss in their population.