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1、Why our world is in danger？Lets do an experimentWhat is greenhouse ？Draw a picture about greenhouse effect of the Earth.The sunLight and heatThe atmosphereThe Earthgreenhouse effect of the EarthThere is an atmosphere around the Earth. ItsNecessary for all living things on Earth.It is just like the g

2、lass of the greenhouse, letingsunlight in and keeping heat from getting out. It controls the Earths temperature, not too cold inthe evening or too hot in the daytime. We call this greenhouse effect.However, we are polluting the Earth with harmfulgases. The gases cause the atmosphere to keep in too m

3、uchheat from the Sun.The Earth is getting warmer and warmer.Too much CO2 will pollute the atmosphere, and causes it to keep in too much heatco2Take in less CO2Destroy the homes of the wild animalsCut down treesBurn fuelsGive out too much CO2Do humful to our healthGreenhouse effect become worsepoison

4、 gasesSurface of the soil Flood and damage to the environmentTemperature increaseSea level riseCities will be floodedBad habitsGreen consumerGreen consumerrecyclereusefriendlyOnly buy and use products that are friendly to the environment Recycle as many things as we canReuse the things for the same purpose or other purposeThe world is in

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