Global warming‚ Ice Core samples‚ Dendrochronology and Peat Bogs. Global warming is the rise of average temperature in the earth’s atmosphere since the late 19th century. Since the beginning of the early 20th century‚ the earths mean surface temperature had increased by around 0.8 degrees. Warming of the climate system had become more obvious and scientists are 90% sure that the main cause of the increase in temperature in due to the increasing concentrations of greenhouse gases due to human
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Introduction The Global Positioning System (GPS) is a satellite-based steering system that comprises a set-up of 24 satellites placed into the path by the U.S. Defense forces. The Global Positioning System was projected initially for military applications‚ although in the 1980s‚ the government permitted civilian use of the system. Notably‚ GPS works in any environment‚ wherever in the world‚ 24 hours on a daily basis. There are no payments or setup charges to exploit GPS‚ as it is free of
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ENVIRONMENTAL PROBLEMS BIODIVERSITY LOSS Biodiversity - refers to the number and size of populations in a community; variability of species in an area In general‚ there are three categorical levels of biodiversity: 1. Genetic biodiversity - involves populations‚ individuals‚ chromosomes‚ genes and nucleotides 2. Taxonomic biodiversity - include kingdoms‚ phyla‚ orders‚ families‚ genera‚ species‚ subspecies and populations - for practical reasons‚
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the instrumental temperature record; the urban heat island is not believed to be significant. Since 1979‚ land temperatures have increased about twice as fast as ocean temperatures. Temperatures in the lowest portion of the earth ’s atmosphere (troposphere) have increased between 0.22 and 0.4 °F per decade since 1979‚ according to satellite temperature measurements. Over the one or two thousand years before 1850‚ temperature is believed to have been relatively stable‚ with possibly regional fluctuations
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With each eruption‚ volcanoes have the potential to eject large amounts of ash‚ gases‚ and sulfuric aerosols into the upper troposphere and stratosphere (Allen‚ 2015). Volcanism helped form Earth’s ancient climate and influences climate change in today’s world (Kasting‚ 1993). A recent example of a volcano influencing climate include the 1982 El Chichon eruption in Mexico‚ which is regarded as the largest volcanic disaster in modern Mexican history (Mass‚ 1989). Ancient examples of climate-changing
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OZONE LAYER DEPLETION AND GLOBAL WARMING OZONE LAYER DEPLETION AND GLOBAL WARMING. The ozone layer acts as a giant sunshade‚ protecting plants and animals from much of the sun’s harmful ultraviolet radiations. Ozone forms a layer in the stratosphere‚ 15-40 km above the earth surface. If the ozone in the atmosphere from the ground level to a height of 60 km could be assembled at the earth’s surface‚ it would comprise a layer of gas only about 3mm thick. Global stratospheric ozone
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this region. The day temperature may rise to 50°C and drop down to near 15°C the same night. (iv) The south-west monsoon winds are responsible for rainfall along the Malabar Coast. (v) Jet streams are a narrow belt of high-altitude winds in the troposphere. The sub-tropical westerly jet stream blowing south of the Himalayas are responsible for the western cyclonic disturbances experienced in the north and north-western parts of the country during the winter months. The sub-tropical easterly jet stream
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New technology emits itself through innovation and sometimes invention based upon the several factors in environments and its effect on the ecosystem and the health of humans and species. What drives the technology the most is the impact that it has left which pushes the drive to change. Scientists are developing new technology every day that can better give us ways to understand our culture‚ and safeguard us against natural changes in our life. Some of the new technologies that have been introduced
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1. The International Convention about wildlife protection is: Convention on Biological Diversity Convention on International Trade in Endangered Species‚ CITES Framework Convention on Climate Change Convention on Ozone Layer Protection Convention on Combat Desertification 2. The International Convention on control of persistent organic pollutants is: Stockholm convention Montreal protocol Convention on Biodiversity Kyoto protocol Convention on Combat Desertification 3. The International
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Alive? Earth’s life support system has four major components: The atmosphere (air) The hydrosphere (water) The geosphere (rock‚ soil‚ and sediment) The biosphere (living things) The Atmosphere The atmosphere can be divided into two layers: The troposphere extends about 17 km above sea level at the tropics and about 7 km above the north and south poles. It contains the air we breathe: 78% Nitrogen 21% Oxygen 1% Greenhouse gases (H2O‚ CO2‚ CH4) that absorb and release energy that warms the lower atmosphere
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