Climate change is already beginning to transform life on Earth. Around the globe, seasons are shifting, temperatures are climbing and sea levels are rising. And meanwhile, our planet must still supply us – and all living things – with air, water, food. The consumption of fossil fuels in last few decades has contributed much to the degradation of our environment. Global warming, climate change, extinction of wildlife species, depletion of ozone layer, and increase in air pollution are few of the problems from which our environment is suffering. It may be quite a task for anyone to find some solid global warming facts to alarm for some action. Here are plenty of them, right on your platter.
Global warming is the increase of earth’s average surface temperature due to the effect of greenhouse gases. These greenhouse gases such as carbon dioxide and methane absorb heat that would otherwise escape from earth. Global warming has emerged has one of the most biggest environmental issue in the two decades. Global warming is the result of increase in the earth’s average surface temperature due to greenhouse gases like carbon dioxide and methane. These gases are required for the presence of human life on earth. However, global warming is happening due to over-remittance of these gases. According to IPCC 2007 report, sea levels will rise by 7-23 inches by the end of this century due to global warming. According to the multinational Arctic Climate Impact Assessment report compiled between 2000 and 2004, the average temperature in Alaska, Western Canada and Russia have risen at twice the global average. Global warming that is causing extreme weather changes has shown it implications in the way of forest fires, heat waves and severe tropical storms throughout the world. There has been a tremendous increase of water vapor, carbon dioxide, methane nitrous oxide and especially greenhouse gases due to polluting substances emitted as a result of industrialization, pollution, deforestation. Due to industrial revolution, the burning of fossil fuels like coal, oil and gas started on a massive scale. This not only increased greenhouse gases but was also responsible for large scale deaths due to asthma and other respiratory diseases. In the last 30 years, the average consumption of fossil fuel by United States has been 80%. Fossil fuels are the most dangerous contributors to global warming.
The heat trapping gases have been increasing in the atmosphere at an alarming rate. The presence of large number of these gases has resulted in enhanced greenhouse effect. Heat waves caused by global warming is responsible for many heat related illness and deaths. Climate change is already affecting many natural systems. For instance, it is increasingly being observed that snow and ice are melting and frozen ground is thawing, hydro-logical and biological systems are changing and in some cases being disrupted, migrations are starting earlier, and species’ geographic ranges are shifting towards the poles. Over the course of the 21st century, many impacts are expected to occur in natural systems. For instance, changes in precipitation and the melting of ice and snow are expected to increase flood risks in some areas while causing droughts in others. If there is significant warming the capacity of ecosystems to adapt will be exceeded, with negative consequences such as an increased risk of extinction of species.
Current warming trends are unequivocal. Over the past century, human activities have released large amounts of carbon dioxide and other greenhouse gases into the atmosphere. The majority of greenhouse gases come from burning fossil fuels to produce energy, although deforestation, industrial processes, and some agricultural practices also emit gases into the atmosphere. It is very likely that greenhouse gases released by human activities are responsible for most of the warming observed in the past fifty years. The warming is projected to continue and to increase over the course of the 21st century and beyond. Climate change already has a measurable impact on many natural and human systems. Effects are projected to increase in the future and to be more severe with greater increases in temperature. Adaptation measures are already being implemented, and will be essential in order to address the projected consequences. There is, however, a limit to adaptation; mitigation measures will also be needed in order to reduce the severity of impacts.
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