Effect of global warming PPT EVS
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Global warming refers to the long-term rise in the average temperature of the Earth's climate system, primarily due to human activities that increase greenhouse gas emissions into the atmosphere. The main causes of global warming are greenhouse gases like carbon dioxide, methane, and nitrous oxide emitted from burning fossil fuels, large-scale deforestation, and agriculture. As the Earth's temperature increases, sea levels are expected to rise and extreme weather events are predicted to become more frequent due to climate change. To control global warming, actions need to be taken to reduce greenhouse gas emissions through using public transportation, renewable energy, capturing methane, and improving energy efficiency. Unabated global warming could flood coastal cities as melting ice causes sea levels to rise by
Effect of global warming PPT EVS
- 1. Effect of Global Warming EVS PROJECT REPORT ON : - Name : - Rajas Jayant Patil ROLL NO :- 43 SYBBA- CA Teacher Name : - MRS. SHARDA PATIL
- 2. Introduction 2 What is Global Warming? 'Global warming' is an expression which refers to the effect of human activities that produces the unnatural change on the climate. It is an increase in earth‘s temperature due to burning of fossil fuels (coal, oil and gas) and large-scale deforestation, which results in emission of large amounts of 'greenhouse gases' to the atmosphere. An increase in global temperature will cause sea levels to rise and will change the amount and pattern of precipitation, and a probable expansion of subtropical deserts. Warming is expected to be strongest in the Arctic and would be associated with continuing retreat of glaciers, permafrost and sea ice. Other likely effects of the warming include more frequent occurrence of extreme-weather events including heat waves, droughts and heavy rainfall, species extinctions due to shifting temperature regimes, and changesi n crop yields…
- 3. How Global Warming Works…! It should NOT be confused with climate change.. • ! GLOBAL WARMING is the increase of the Earth’s average surface temperature due to a build-up of greenhouse gases in the atmosphere. • CLIMATE CHANGE is a broader term that refers to long-term changes in climate, including average temperature and precipitation 3
- 4. Causes of Global Warming • 1. Greenhouse Effects: - Greenhouse effect is the phenomenon in which the heat and light of sun enters to the earth's atmosphere but cannot go out as they are trapped by the greenhouse gases, as a result temperature rises. 4 2. Greenhouse Gases: - Greenhouse gases mainly comprises of carbon dioxide, methane, and nitrous oxide. These gases are lighter than air, so they rise up to the outer limits of the earth‘s atmosphere and settle up there, making an impenetrable barrier that traps heat from escaping out into the space, and keeping it within our environment, and increases the temperature 3. Agriculture : -Agriculture produces large amount of methane and nitrous oxide worldwide, as accounted by IPCC. There are numerous agricultural sources of greenhouse gases
- 5. How To Control Global Warming ? We need to control global warming to reduce the future risk. Global warming is the increase in the average temperature of the Earth’s near-surface air and oceans in recent decades and its projected continuation. Global warming is a very serious issue. The future would be very terrible if we don’t take any action to reduce it right away. Use Public Transport. Use Renewable Energy Like Wind Power. Burn Methane. Use Smart Cooler, Heater & Air Conditioner. Tune up and maintain vehicles properly. Clean the air in your house. Reduce electricity usage to the maximum. Prefer recycling. & Go Green... SAVE PLANET……….! 5
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- 7. RESULT 7 As the ice melts, big chunks of glaciers will break off and become like ice cubes in a big glass of water. The ice chunks, known as icebergs, create mass in the ocean. The icebergs displace the water causing the ocean level to rise. Some of the shoreline in many places like Florida (where the land is at a low altitude) will go under water. This melting could increase the oceans height by up to 2 feet in only one century! This would mean many heavily populated costal cities would flood causing millions maybe billions of dollars and damage and the potential loss of life in these cities. Save Energy Save Life
- 8. GLOBALWARMING DUETO GREEN HOUSE EFFECT Warming of earth by green house effect is occurring since many centuries, it is only due to this effect that good temperature for living is maintained on the earth surface but now due to large scale pollution resulting from rapid industrialization fossil fuel burning ,deforestation etc .this effect has become more severe. 8
- 9. CONCLUSION 9 5.Conclusion The term global warming was probably first used in its modern sense on 8 August 1975 in a science paper by Wally Broacher in the journal Science called "Are we on the brink of a pronounced global warming?". Broacher’s choice of words was new and represented a significant recognition that the climate was warming; previously the phrasing used by scientists was "inadvertent climate modification," because while it was recognized humans could change the climate, no one was sure which direction it was going. The National Academy of Sciences first used global warming in a 1979 paper called the Carney Report, it said: "if carbon dioxide continues to increase no reason to doubt that climate changes will result and no reason to believe that these changes will be negligible." The report made a distinction between referring to surface temperature changes as global warming, while referring to other changes caused by increased CO2 as climate change.