Because of the treacherous effects of global warming, some solutions must be devised. 15+ million members; + million publications; k+ research projects College of Engineering & Technology, Riphah International University, . Introduction. Global warming is in the news. While scientists agree that temperatures are rising, they disagree as to the causes and the rate of change. blame developing countries for global warming . the West to check pollution and global warming could be The California based International Project for.
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The gasresponsible for What Is Global Warming?Global warming is when the earth heats up (the temperature Global Warming Project. Signs of global warming in the United States, region by region iv. Executive summary v. Introduction. 1. Part I: Extreme events. 3. Killer heat waves. 3. Torrential. Scientists have been able to study climate change by looking A Down-to-Earth Guide to Global Warming, Laurie . Start a school project to educate others.
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Project Report on Global Warming
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What causes global warming?
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Global warming and climate change
Presented by: Acknowledgement and believe, this project work iscompleted from every aspect, which can help the study invarious ways. Theglobal warming of the past 50 years is due primarily to this human-induced increase.
Globalaverage temperature and sea level have increased, and precipitation patterns have changed. In the U. Many types of extreme weather events, such as heat waves and regional droughts, havebecome more frequent and intense during the past 40 to 50 years. The destructive energy ofAtlantic hurricanes has increased In the eastern Pacific, the strongest hurricanes have becomestronger since the s, even while the total number of storms has decreased.
Sea level has risenalong most of the U. Arctic sea ice isdeclining rapidly and this is very likely to continue. Global temperatures are projected to continueto rise over this century. Whether by degrees F or more than 11 degrees depends on a numberof factors, including the amount of heat-trapping gas emissions humans continue to allow and howsensitive the climate is to those emissions. Lower emissions of heat-trapping gases will delay theappearance of climate change impacts and lessen their magnitude.
Unless the rate of emissions issubstantially reduced, impacts are expected to become increasingly severe for more people andplaces. My deepest thanks to our Zoology Lecturer MS. She has taken pain to go through the project and make necessarycorrection as and when needed. I express my thanks to the Principalfor extending her support.
My deep sense of gratitude to my friends fortheir support and guidance.
I would also thank my Institution and myfaculty members without whom this project would have been a distantreality. I also extend my heartfelt thanks to my family and well wishersfor their encouragement and cooperation. It should NOT be confused with climate change!
What is global warming? Global warming refers to the rising average temperature of Earths atmosphere and oceans,which started to increase in the late 19th century and is projected to keep going up. Since the early20th century, Earths average surface temperature has increased by about 0. Thesefindings are recognized by the national science academies of all the major industrialized nations. An increase in global temperature will cause sea levels to rise and will change the amount andpattern of precipitation, and a probable expansion of subtropical deserts.
Other changes emanate from so-called external forcings. These forcings are "external" to the climate system, but not necessarily external to Earth. So a key approach is to use physical models of the climate system to determine unique fingerprints for all potential external forcings.
By comparing these fingerprints with the observed pattern and evolution of the climate change, and the observed evolution of the forcings, the causes of the observed changes can be determined. CO Main articles: Greenhouse gas , Greenhouse effect , and Carbon dioxide in Earth's atmosphere Greenhouse gases trap heat radiating from Earth to space.
For instance, the change from a dark forest to grassland makes the surface lighter, and causes it to reflect more sunlight: an increase in albedo.
Humans change the land surface mainly to create more agricultural land. Other processes linked to land use change however have had the opposite effect, so that the net effect remains unclear. Solid and liquid particles known as aerosols — from volcanoes, plankton and human-made pollutants — reflect incoming sunlight,  cooling the climate. Sulfate aerosols act as cloud condensation nuclei and thus lead to clouds that have more and smaller cloud droplets.
These clouds reflect solar radiation more efficiently than clouds with fewer and larger droplets, a phenomenon known as the Twomey effect.
Not only does it increase the absorption of sunlight, it also increases melting and sea level rise. This changes climate by changing the seasonal and latitudinal distribution of incoming solar energy at the Earth's surface,  resulting in periodic glacial and interglacial periods over the last few million years.
After an initial warming due to emissions of greenhouse gases, the atmosphere will hold more water. As water is a potent greenhouse gas, this further heats the climate: the water vapour feedback.
To date, cloud changes have had a cooling effect, with NASA estimating that aerosols produced by the burning of hydrocarbons have limited warming by half from to Projected change in annual mean surface air temperature from the late 20th century to the middle 21st century, based on a medium emissions scenario SRES A1B.
A subset of climate models add societal factors to a simple physical climate model. These models simulate how population, economic growth and energy use affect — and interact with — the physical climate.
With this information, scientists can produce scenarios of how greenhouse gas emissions may vary in the future. Scientists can then run these scenarios through physical climate models to generate climate change projection.The yellow bars show emissions for ; the orange bars show the picture just over a decade later in Data source: Scientists can also study changes in the climate using ocean sediments, samples of buried pollen, and other, once-living matter.
This could lead to landslides and increased seismic and volcanic activities. As water is a potent greenhouse gas, this further heats the climate: the water vapour feedback. In practice, reducing emissions is both very simple and very hard.
Heat strokes are likely to increase as temperature gets hotter. Submit Search.
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