Human activity has a great impact on global warming. Events, such as burning fossil fuels, contributes much of the carbon dioxide that is emitted into the atmosphere. Global warming effects caused by human activity affects the earth 's climate in many ways. It is melting the earth 's poles, glaciers and ice sheets which causes sea levels to rise.
Global Warming. Throughout its long history, Earth has warmed and cooled time and again. Climate has changed when the planet received more or less sunlight due to subtle shifts in its orbit, as the atmosphere or surface changed, or when the Sun’s energy varied.
An Overview of Global Warming. Global warming refers to the increase in the earth's average temperature that occurs naturally or, as theorized in recent years, is induced by human activity. Most discussions on global warming today cite a correlation between an increase in global temperature and the increase in carbon dioxide, nitrous oxide, methane, and chlorofluorocarbons (CFCs) in the.
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The United Nations has been studying climate change and working to combat its effects since the first Earth Summit in 1992. The UN Intergovernmental panel's fifth report, published in late 2014, reiterates that global warming—more precisely called climate change—is happening and will likely not abate for centuries. The report also states with 95% certainty that the activity of humans has.
Global warming is the ongoing rise of the average temperature of the Earth's climate system and has been demonstrated by direct temperature measurements and by measurements of various effects of the warming. It is a major aspect of climate change which, in addition to rising global surface temperatures, also includes its effects, such as changes in precipitation.
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Global warming, scientists say, is responsible not only for shrinking ice caps but also for a surge in extreme weather that is causing heat waves, forest fires, and droughts. The polar bear standing on a chunk of shrinking ice, apparently stranded, has become a familiar image, a symbol of the devastating effects of climate change.
Global warming is the term used to describe a gradual increase in the average temperature of the Earth's atmosphere and its oceans, a change that is believed to be permanently changing the Earth.
Global warming is one of the most serious hazard that we our facing today. The alarming signs were seen, even here in our country. Drought happens during rainy season while typhoons come upon summer months. The abnormal rainfall causes the rise of sea water level and more areas experience flooding.