1. Unit 19 Global Warming Heating up the Earth = GLOBAL WARNING?

2. GH effect A natural phenomenon where gases in Earth’s atmosphere trap heat from the sun to warm the surface and lower atmosphere Enhanced GH effect Accelerated GH effect due to rapid increase in GH gases in the atmosphere, trapping more heat from the sun

3. . The atmosphere is the layer of air around the earth to keep it warm . Allows the right amount of sun’s heat in, and doesn’t allow too much to escape. The clothes are the layer around our body to keep us warm Allows the body to maintain a certain temperature. Relationship of Body & Clothes Relationship of Earth & Atmosphere

4. Earth is warmed by : 1. Itself – gives out heat 2. Heat from sun 3. Trapped heat from Greenhouse effect A natural Greenhouse effect allows the sun’s rays to enter earth and keep the heat inside Necessary to keep Earth warm and livable. Warming of the Body Warming of the Earth We are warmed by 1. Body gives out heat 2. Heat from the sun 3.Trapped heat from the clothes

6. Heat that reaches earth Heat that are reflected back by earth & atmosphere Heat is trapped by GH gases Heat given out from the earth Greenhouse gases in the atmosphere Solar radiation from the Sun to Earth

9. Enhanced Greenhouse Effect Yellow layer = Extra Greenhouse Gases / Air pollutants

14. 1. Get into groups of 4 2. Create a drawing with the following items in it a. Weather b. Plants c. People d. Animals e. Sea WRITE DOWN THE IMPACTS OF GLOBAL WARMING ON EACH OF THEM Consequences of Global warming

16. Worksheet page 1

25. Use alternate sources of energy promote vehicles that run on alternative fuel e.g. Hybrid cars in Germany powered by petrol and electric batteries = consume less fuel / release less pollutants Enforcing laws & regulations - strict laws on amount of pollutants emitted by vehicles, industries, power stations Solutions to Global warming (National level)

27. Together, we can reduce demand for meat products and REDUCE METHANE! So eat LESS MEAT! More Veggies… It’s getting hot in Kranji Pig Farm ! Global Warning Do you know that Methane is found in food supply and livestock? It contributes to Greenhouse effect which causes GLOBAL WARMING! Advertisement for Kranji pig farm