Monday, January 11, 2010

Climate Change

The Earth's climate has changed many times during the planet's history, with events ranging from ice ages to long periods of warmth. Historically, natural factors such as volcanic eruptions, changes in the Earth's orbit, and the amount of energy released from the Sun have affected the Earth's climate. Beginning late in the 18th century, human activities associated with the Industrial Revolution have also changed the composition of the atmosphere and therefore very likely are influencing the Earth's climate. The term climate change is often used interchangeably with the term global warming, "the phrase 'climate change' is growing in preferred use to 'global warming' because it helps convey that there are other changes in addition to rising temperatures." Climate change refers to any significant change in measures of climate such as temperature, precipitation, or wind lasting for an extended period maybe decades or longer. Climate change may result from changes in ocean circulation, burning fossil fuels and the land surface such as deforestation, urbanization , desertification and other human activities.
Global warming is an average increase in the temperature of the atmosphere near the Earth's surface and in the troposphere, which can contribute to changes in global climate patterns. Global warming can occur from a variety of causes, both natural and human induced. In common usage, "global warming" often refers to the warming that can occur as a result of increased emissions of greenhouse gases from human activities. Its also called the greenhouse effect.
Whatever happens in our surroundings living things are affected. Climate change affects people, plants, and animals. Scientists are working to better understand future climate change and how the effects will vary by region and over time. Scientists have observed that some changes are already occurring. Observed effects include sea level rise, shrinking glaciers, changes in the range and distribution of plants and animals, trees blooming earlier, lengthening of growing seasons, ice on rivers and lakes freezing later and breaking up earlier, and thawing of permafrost. Another key issue being studied is how societies and the Earth's environment will adapt to or cope with climate change. As humans what we can do? This question is we can only answered . You release greenhouse gases as a result of using energy to drive, using electricity to light and heat your home, and through other activities that support our quality of life like growing food, raising livestock and throwing away garbage. We can help start with in our home. The waste that we produce everyday by reducing, reusing and recycling solid waste can decrease the amount of heat-trapping greenhouse gases you release.Help to save our planet.

No comments:

Post a Comment