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Climate change
Climate is defined as the general weather patterns of a region, including variables such as temperature, humidity, wind and precipitation. The climate of the world is changing rapidly due to both natural factors like variations in the sun's output, continental drift and volcanic eruptions, as well as man-made factors like increased greenhouse gas emissions from sources such as vehicle exhaust, oil refineries and forest fires. Greenhouse gases like carbon dioxide and water vapor trap heat in the lower atmosphere, causing global warming and leading to problems such as more droughts and floods, less ice and snow, extreme weather, and rising sea levels. Urgent action is needed to reduce greenhouse gas emissions and slow the impacts of climate change.
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Climate change
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- 2. WHAT IS CLIMATE? •Climate is the general weather conditions of a place. • It is the pattern of variation in temperature, humidity, atmospheric pressure, wind, precipitation etc.
- 3. • Climate ofthe world is changing at a rapid speed. • Changes in climate can be: changes in average temperature changes in rainfall patterns changes in humidity level of a place.
- 4. CHANGING CLIMATES HAVE CHANGEDLANDSCAPES ARAVALLI HILL FORESTS, INDIA
- 5. CHANGES IN THE FOLLOWINGCAUSE CLIMATE CHANGE: CHANGE • Sun’s output • Earth’s orbit • Drifting continents • Volcanic eruptions • Greenhouse gases
- 6. SOLAR OUTPUT CAUSES ONLYMINOR CHANGES IN EARTH’S TEMPERATURES.
- 7. • In the distantpast, these made a big difference in climate over millions of years by : changing ice caps at the poles altering ocean currents, which transport heat and cold .
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- 9. Huge volcanic eruptionscan cool Earth by injecting ash and tiny particles into the stratosphere
- 10. COOLING EFFECT AFTERVOLCANIC ERUPTION
- 11. BUT THE MOST SIGNIFICANTFACTOR FOR CLIMATE CHANGE ARE
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- 13. FACTORY SMOKE FOREST FIRES VEHICLEEXHAUST OIL REFINERIES
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- 16. GREENHOUSE EFFECT • Greenhouse gaseslike CO2 and H2O form a blanket above the earth surface. • They trap the solar heat. • This leads to warming of the atmosphere.
- 17. This leads to: • More drought • more flooding • less ice and snow • extreme weather • rising sea level
- 18. FLOODS DROUGHT EXTREME WEATHER AND NATURAL CALAMITIESDUE TO GLOBAL WARMING POLAR MELTDOWN SEVERE SNOWFALL
- 19. GLOBAL WARMING CAUSESMELTING GLACIERS AND RISING SEA LEVELS
- 26. CYCLE TO REDUCE YOUR CARBONFOOTPRINT
- 27. BUT MAN’S GREEDHAS ROBBED THE MOTHER EARTH OF ITS BEAUTY AND BOUNTY. WE HAVE TO STOP THIS MAYHEM BEFORE ITS TOO LATE.
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