when it falls‚ is often more intense. Floods and storms are more severe and heat waves are becoming more extreme. Rivers freeze later in the winter and melt earlier. Trees flower earlier in spring‚ insects emerge faster and birds lay eggs sooner. Glaciers are melting. The global mean sea level is rising. Even if we reduce our greenhouse gas emissions dramatically today‚ these trends will continue for decades or centuries to come. The rate of climate change expected over the next 100 years is unprecedented
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What is Global Warming? Global Warming is defined as the increase of the average temperature on Earth. As the Earth is getting hotter‚ disasters like hurricanes‚ droughts and floods are getting more frequent The average facade temperature of the globe has augmented more than 1 degree Fahrenheit since 1900 and the speed of warming has been almost three folds the century long average since 1970. This increase in earth’s average temperature is called Global warming. More or less all specialists
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REPORT On Environment Degradation & Climate Change Date of Submission: 21/11/2011 Definition: Environmental degradation is a result of the dynamic interplay of socio-economic‚ institutional and technological activities. Environmental changes may be driven by many factors including economic growth
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Venue : Presidency Girls Hr. Sec. School ‚ Egmore‚ Chennai NATIONAL SCIENCE SEMINAR WATER CRISIS ON THE EARTH PROBLEMS AND REMEDIES Submitted by A. NAVEEN ANTO‚ Sri Jayendra Golden Jubilee School‚ Sankarnagar - 627 357‚ Tirunelveli‚ Tamilnadu. Date : August 27‚ 2008 CONTENT ♦ INTRODUCTION ♦ WHAT DO WE MEAN BY WATER CRISIS? ♦ WHAT CAUSES & TRIGGERS THE WATER CRISIS ♦ IMPACTS OF WATER CRISIS ♦ REMEDIES FOR WATER CRISIS ♦ CONCLUSION WATER CRISIS ON THE EARTH PROBLEMS AND REMEDIES
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destroying it. “Pollution of water… is killing more children today than malaria or AIDS or even wars themselves.” Tony Clarke. Greenhouse gasses caused by people are causing water levels to drastically change. This is leaving islands to disappear‚ glaciers to melt‚ weather to change‚ and lives affected. Rainwater is a resource that is available yet largely unused. Rainwater harvesting is helping to save the Earths water. We need to do something‚ nothing will be changed unless everyone makes an effort
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For example‚ the presence of sedimentary rocks all over the world indicates that there had been global water activity. In order for the sedimentary rocks to form‚ there must be erosion‚ transportation‚ and deposition of sediments by moving water that contained the sediments. After the sediment has been deposited‚ it will slowly convert into stone. In addition‚ fossils have been discovered within the sedimentary rocks. Fossils could
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Rock‚ bordering the United States and Canada. Basically‚ one third of the Canadian Falls is within U.S. territory (“Geological Niagara”). These massive falls were created over 18‚000 years ago. During the ice age‚ specifically the last glacial period‚ the erosion of the land that was covered with snow and ice created the Falls. The water running over the Falls was considered to be “fossil water” (“Formation Niagara”). The amount of water that actually flows depends upon the time of year and time
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Approximately every 100‚000 years Earth’s climate warms up temporarily. These warm periods‚ called interglacial periods‚ appear to last approximately 15‚000 to 20‚000 years before regressing back to a cold ice age climate. At year 18‚000 and counting our current interglacial vacation from the Ice Age is closer to its end than its beginning (Geo Craft). This leads to the growing debate of today‚ is global warming man-made? Or is it just a cycle that the Earth goes through? This is a controversial
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between the 1300AD and 1350AD. The end is universally accepted as around 1850AD. It covered the northern hemisphere‚ most prominently Europe and North America. Between the years of 1550 and 1850‚ the LIA was marked by the rapid expanding mountain glaciers‚ especially in Alaska‚ the Alps‚ Norway‚ and Ireland. In this time‚ there was 3 maxima‚ where the temperatures were particularly
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Associate Level Material Oceans and Atmosphere Worksheet Using the assigned readings for Week Six‚ prepare a 50- to 75-word response to each of the following questions. The Oceans 1. What is the composition of seawater? The salinity of seawater ranges from 3.3 to 3.7%. When seawater evaporates it leaves behind sodium chloride‚ better known as table salt. The other components of seawater are acquired through various methods. One of which is weathering. Chemical weathering of rock releases
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