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GLOBAL WARMING
- 2. What is global warming ? Global warming is the long-term heating of Earth's climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere It is the increase of Earth's average surface temperature
- 3. CAUSES OF GLOBAL WARMING ⚫ Including: ⚫ Increasing atmospheric concentrations of greenhouse gases. ⚫ Solar Variations ⚫ Deforestation ⚫ Global Dimming ⚫ Increasing atmospheric concentrations of aerosols. ⚫ Mostly from human activity. MOPITT 2000 global carbon monoxide
- 4. GREEN HOUSE GASES A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The primary greenhouse gases in the Earth's atmosphere are : 1. Water 2. CO2 3. METHANE 4. NITROUS OXIDE 5. OZONE
- 7. IMPACTS OF GLOBAL WARMING 1. Accelerating Sea Level Rise and Increased Coastal Flooding - Average global sea level has increased eight inches since 1880. Global warming is now accelerating the rate of sea level rise, increasing flooding risks to low-lying communities and high-risk coastal properties whose development has been encouraged by today's flood insurance system. 2. Longer and More Damaging Wildfire Seasons - Wildfires are increasing and wildfire season is getting longer in the Western U.S. as temperatures rise.
- 8. IMPACTS OF GLOBAL WARMING 3. More Frequent and Intense Heat Waves - Dangerously hot weather is already occuring more frequently than it did 60 years ago—and scientists expect heat waves to become more frequent and severe as global warming intensifies. 4. Costly and Growing Health Impacts - Climate change has significant implications for our health. Rising temperatures will likely lead to increased air pollution, a longer and more intense allergy season, the spread of insect- borne diseases. 5. An Increase in Extreme Weather Events - Strong scientific evidence shows that global warming is increasing certain types of extreme weather events.
- 9. IMPACTS OF GLOBAL WARMING 6. More Severe Droughts in Some Areas - Climate change affects a variety of factors associated with drought and is likely to increase drought risk in certain regions. As temperatures have warmed, the prevalence and duration of drought has increased. 7. Destruction of Coral Reefs - As global temperatures rise, so too do average sea surface temperatures. These elevated temperatures cause long-term damage to coral reefs. Scientists have documented that sustained water temperatures of as little as one degree Celsius above normal summer maxima can cause irreversible damage.
- 10. TOP 5 COUNTRIES BY 2012 CO2 EMMISION INDIA RUSSIA JAPAN CHINA USA
- 11. WAYS TO STOP GLOBAL WARMING 1. Reduce Fossil Fuel Use - Burning fossil fuels increases the levels of greenhouse gases in the atmosphere. There are two ways to reduce fossil fuel use: Use less energy, or use alternative, nonpolluting energy sources like solar and wind power.
- 12. 2. Plant Trees - Because carbon dioxide is the most important greenhouse gas, planting trees and other plants can slow or stop global warming. Plants take in carbon dioxide and release oxygen. 3. Reduce Waste - The production of garbage contributes to global warming. Decomposing waste in landfills produces methane and other greenhouse gases. WAYS TO STOP GLOBAL WARMING
- 13. WAYS TO STOP GLOBAL WARMING 4. Conserve Water - Cities consume significant amounts of energy when purifying and distributing water, which contributes to greenhouse gas emissions. Saving water reduces the amount of energy used. 5. Use of 3 R’S- Reduce , Reuse , Recycle
- 14. Make Earth Green And Stop Global Warming
- 15. THANK YOU.