Effects of Global Warming

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Significant Impact of Global Warming
1. Global Warming
The term "global warming" is a specific example of the broader term 'Climate Change'. It can also refer to global cooling. In common usage, the term refers to recent warming and implies a human influence. The United Nations Framework Convention on Climate Change uses the term "Climate Change" for human-caused changes to the environment.
Carbon dioxide during the last 400,000 years and the rapid rise since the Industrial Revolution; changes in the Earth's orbit around the Sun, known as Milankovitch cycles, are believed to be the pacemaker of the 100,000 year ice age cycle. This attribution is clearest for the most recent 50 years. The recent warming is mainly attributable to elevated levels of greenhouse gases, supported by hypotheses to explain the observed increase in mean global temperature. One such hypothesis proposes that warming may be the result of increased solar radiation associated with greater numbers of sunspots.
Climate change refers to the variation in the Earth's global climate or in regional climates over time. It describes changes in the variability or average state of the atmosphere over time scales ranging from decades to millions of years. These changes can be caused by processes internal to the Earth, external forces (e.g. variations in sunlight intensity) or, more recently, human activities.
2. Climate Change
Glaciers are recognized as one of the most sensitive indicators of climate change, advancing substantially during climate cooling and retreating during climate warming on moderate time scales. Glaciers grow and collapse, both contributing to natural variability and greatly amplifying externally-forced changes.
For the last century, however, glaciers have been unable to regenerate enough ice during the winters to make up for the ice lost during the summer months. The most significant climate processes of the last several million years are the glacial and interglacial cycles of the present ice age.
3. Ocean Catastrophe
Sea temperatures increase more slowly than those on land both because of the larger effective heat capacity of the oceans and because the ocean can lose heat by evaporation more readily than the land. Since the northern hemisphere has more land mass than the southern it warms faster; also there are extensive areas of seasonal snow cover subject to the snow-albedo feedback. Although
more greenhouse gases are emitted in the northern than southern hemisphere this does not contribute to the asymmetry of warming as the major gases are essentially well-mixed between hemispheres.
4. Arctic Survival - Polar Bear
The plight of the bears was highlighted as the prospect of a gloomy future emerged from leaks of the most comprehensive report into global warming yet undertaken, which is to be published on Friday. Concluding that it is "highly likely" that mankind is to blame for climate change, it talks of more droughts, torrential rains, shrinking Arctic ice and glaciers, and rising sea levels for the next century. And it warns that the effects of a build-up of greenhouse gases in the atmosphere will last far longer. Studies of polar bears have revealed that not only have their numbers declined by nearly one quarter in just 20 years to around 25,000 but so has their physique.
Common Sense Solutions
Fuel-efficient vehicles Renewable energy Protecting threatened forests We just need to insist that businesses and government take the necessary steps to make these available and affordable.
This eBook is designed to create awareness on global warming. The eBook not only describes the causes but also suggests simple and economic ways to overcome the issue of global warming. We hope you like this eBook.