UNIVERSAL CLIMATE CHANGE AND ITS BOUNDERIES

This topic discuss about the climate changes and its phases and demographics.

1. STS 100 CHAPTER III LESSON 6: CLIMATE CHANGE GROUP 6

2. MARI TONEE PACRES LETECIA MAE ROTA MARY CLAUDINE DIME KEITH PARAISO GROUP 6

3. LESSON OBJECTIVES: At the end of this lesson the students should be able to: Identify the causes of climate change; Understand the effects of climate change on the society; and Illustrate how the community helps in mitigating the hazards caused by climate change.

4. What is Climate change? Causes of climate change 1. Natural Causes Volcanic Eruption by: MARI TONEE PACRES

5. The Earth has three main climate zones: tropical, temperate , and polar . The climate region near the equator with warm air masses is known as tropical. In the tropical zone, the average temperature in the coldest month is 18 °C. What is our climate?

6. Earth main climate zone Temperate * The daily range temperatures sometimes runs as much as 50 ° to 60 ° F during the drier periods of the year . * D oes not have temperature extremes * M oderate rain and snow. * T wo main types of temperate climate zones: the maritime zone near the oceans and the continental zone located inland. Tropical * Warmest climate zone of the Earth * Close to the equator. * Do not have the four seasons Polar * Average temperature is 0°F * No warm summers

7. What is climate change? Refers to the significant changes in climate for continues period of time.

8. The Internal Panel on Climate Change (IPCC) Factors: Natural internal process External Forces Persistent anthropogenic

9. Causes of Climate Change Natural Human Activities

10. Natural

11. when a volcano erupts, it ejects many different types of material into the air including a variety of gasses such as water vapor and carbon dioxide and ash (small particles of dust). Both of these gasses are greenhouse gasses and can contribute to the greenhouse effect and an increase of Carbon dioxide levels in the atmosphere . Volcanic Eruptions Natural cause

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17. THE CARBON DIOXIDE THEORY by: MARY CLAUDINE N. DIME

18. WHAT IS CARBON DIOXIDE? Chemical Formula: CO2 a colorless, odorless gas found in our atmosphere. Waste product in our bodies Used by plants during photosynthesis or used as a raw material to produce other organic compounds needed for plant growth and development.  

19. THE CARBON DIOXIDE THEORY Carbon dioxide is added when power and heat are produced by burning coal, oil and other fossil fuels. Carbon dioxide is transparent to sunshine but not invisible to infrared (heat) radiation leaving the ground. Doubling the carbon dioxide raises the temperature to 2°C to 3°C.

20. HUMAN ACTIVITIES The largest known contribution comes from the burning of fossil fuels. Greenhouse gases and aerosols affect climate by altering incoming solar radiation that are part of earth’s energy balance. Climate during this era greatly exceeds that due to known changes in natural processes EXAMPLE: solar changes and volcanic eruptions.

21. HUMAN ACTIVITIES The greenhouse gases are natural gases. The high level of these gases in the atmosphere contributes to the greenhouse effect. Changing the atmospheric abundance or properties of these gases and particles can lead to a warming or cooling of the climate system .

22. HUMAN ACTIVITES RESULT IN 4 GREENHOUSE GASES: N2O NITROUS OXIDE CO2 Carbon dioxide HALOCARBON GAS fluorine, chlorine and bromine CH4 METHANE These gases accumulate in the atmosphere, causing concentrations to increase with time. The greenhouse gases mentioned are natural gases.

23. the building, heating, cooling High level of carbon dioxide comes from fossil fuel use: manufacture of cement and other goods. in transportation

24. Deforestation releases carbon dioxide and reduces its uptake by plants. HUMAN ACTIVITIES High methane emission is related to agriculture, natural gas distribution, and landfills. High nitrous oxide is emitted by human activities such as fertilizer use and fossil fuel burning.

25. Halocarbon gas concentrations have increased primarily due to human activities. HUMAN ACTIVITIES Ozone is another greenhouse gas that is continually produced and destroyed in the atmosphere by chemical reactions.

26. Holacarbons released by human activities destroy ozone in the stratosphere and have caused a ozone hole over Antarctica. Water vapor is most abundant and important greenhouse gas in the atmosphere, human activities have only small direct influence on the amount of atmosphere water vapor. Holacarbons

27. Aerosols contain both naturally occurring compounds and those emitted as a result of human activities. Human activities such as surface mining and industrial processes have increased dust in the atmosphere. AEROSOLS

28. HUMAN ACTIVITIES September 16, 1986 international treaty was adapted Montreal Protocol AIMED : The treaty aimed to regulate the production and use of chemicals that contribute to Ozone depletion.

29. Causes and Effects of Climate Change | National Geographic

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