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Global warming, effects and it's prevention
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- 2. What is GlobalWarming? An increase in the average temperature of the Earth’s atmosphere and oceans Global temperature on both land and sea increased by 0.6 ± 0.2 °C over the past century
- 3. Our Changing Climate The snow cover in the Northern Hemisphere and floating ice in the Arctic Ocean have decreased Sea level has risen 4-8 inches over the past century
- 4. What causes it? HumanImpacts- Atmospheric greenhouse gases trap some of the outgoing energy, retaining heat Natural Impacts- Change in sun’s energy output Volcanoes
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- 6. The Greenhouse Effect Solar radiation from the Sun reaches the Earth’s atmosphere The surface of the Earth absorbs most of the short-rayed insolation and later releases this heat in the form of infrared radiation into the atmosphere. Some of the heat is absorbed by particles known as “greenhouse gases.” The heat retained by the gases acts as a “heat blanket.”
- 7. Burning of fossilfuels The burning of fossil fuels releases Carbon dioxide in the atmosphere. In the past 150 years, burning fossil fuels has caused a 25 % increase in Carbon dioxide emissions. Nitrous oxide has increased 17%. Methane has increased 150%!!
- 8. CO2 | NH4| N20 Greenhouse Gases:
- 9. Effects of globalwarming . rise in sea level from melting glaciers and polar ice caps (adds 0.2 mm annually) Rising temperatures will also cause drier conditions in many important agricultural regions.
- 10. Sea Life Effects CoralReef Bleaching— Change in temperature and elevated sea level cause loss of algae in the coral. Coral appears white, or “bleached.” Result is mass death of sea animals, which are dependent on the coral reef. The penguin population near Antarctica has been declining as the distance between them and their food has increased.
- 11. Increased Storm Frequency andIntensity
- 12. Rising Sea levels The rise of temperature, even to a few degrees, could lead to the melting of ice shelves that hold back glaciers. This results in rising sea levels The Larsen area of North Antarctic, South of Chili and Argentina have lost more than 5,200 sq miles of area.
- 13. Effects Land animals Global warming can disrupt the migration, hibernation and reproductive cycles of certain types of animals. Plants and animals will find it hard to escape or adjust to the effects of warming because humans occupy so much land.
- 14. Health & GlobalWarming Extreme temperatures can directly cause the loss of life (35,000 people died during heat wave in Europe) Warmer weather provides an ideal breeding environment for mosquitoes. High temperature can increase pollution of water and air, which harms the human body. .
- 15. Tropical Diseases – GlobalWarming increases drought which lessens the supply of clean drinking water. Cholera – It increases temperature providing an ideal breeding environment for mosquitoes. Dengue fever Malaria Yellow fever
- 16. Effects on Air Clouds close to the earth reflect sunlight cooling effect Clouds high in the atmosphere trap heat warming effect
- 17. El Niño Effect Severeoceanic/atmospheric disturbance,every 7-14 yrs (“the child”) Warm surface waters suppress cold, nutrient-rich upwelling of the Humboldt Current Fall in the number of plankton – Wreaks havoc upon the entire ocean food chain – Devastates the fishing industry
- 18. El Niño Effect Collapse of the monsoons in Asia severe drought to Indonesia and northern Australia. Severe weather disturbances in other parts of the world, such as droughts in areas of Africa and central North America.
- 19. How To Prevent GlobalWarming: Plant trees Conserve energy Buy energy efficient products Buy products that have reusable or recyclable packaging Reduce use of car (public transport instead)
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- 21. 1. If youare able to plant a tree, start digging! 2. Via photosynthesis, trees and other plants absorb CO2 and give off Oxygen. 3. There are too few plants and trees to fully counter the increase in CO2. 4. Think it won’t make a difference? Think again. Just one tree can absorb one ton of CO2 in its lifetime. What are you waiting for? Plant a Tree
- 22. 1. The amountof emissions and other types of carbon dioxide pollutants being released in the atmosphere annually would be reduced by several billion tons! 2. On an individual scale, you can help limit your carbon dioxide emissions, your driving habits. and therefore your global warming impact, by changing Take Public Transportation
- 23. Educate Others toTake Action
- 24. Replace Incandescent Bulbs Fix WeatherStripping and Caulking Stop Water Leaks Change your Thermostat Buy Local , Sustainably Produced Food Take Action At Home The Easy Stuff...
- 25. What Can beDone: Alternatives Renewable Energy Sources Solar Energies Wind Power Biomass Geothermal Changes In Vehicle Systems Hybrid Fuel Cell Battery- Electric
- 26. 3R’s of Saving MotherNature
- 27. 1. Reduce wasteby buying reusable products as opposed to disposables. 2. You can also buy products with less packaging so that you throw less away. 3. Whenever you can, recycle paper, plastic, glass and metal (aluminium). 4. By recycling half of your household waste, you can save up tons of CO2 every year from being released into the atmosphere. Reuse,Reduce,Recycle
- 28. Kyoto Protocol 1997,Kyoto, Japan developed countries agreed to specific targets for cutting their emissions of greenhouse gases Industrialized countries committed to an overall reduction of emissions of greenhouse gases to 5.2% below 1990 levels for the period 2008 - 2012 Objective is the stabilization of greenhouse gas concentrations in the atmosphere at a level that would prevent dangerous anthropogenic interference with the climate system
- 29. Thank You...!!!! Try notto blow our Earth !!!! Its Your Actions That Matters !!!!
- 30. Team members Kannappankarthik -16bmc017 Riyas-16bmc004 Radha Krishnan-16bmc003 Subash-16bmc001 Mummanah sasi kumar-16bmc002 Bharat kumar-16bmc201