Unit 6: WRITING Global warming: Causes and effects 1.Which are the causes and which are the effects of global warming? Complete the diagram with the ideas below • • • • • • • • • • • Causes: Effects: 2.Discuss and complete the outline, using the ideas from • • • • • • • • • • • • 1) Introduction -one of the biggest issues facing humans nowadays -caused mainly by humans -most catastrophic effects on humans -humans have to take actions to reduce the risks -the essay will discuss the causes and effects, and possible solutions 2) What global warming is and its causes -the rise in the average temperature of the earth due to the increase of greenhouse gases in the atmosphere -causes: +carbon dioxide emissions from the burning of fossil fuels +deforestation for farmland, wood and paper +increasing use of chemical fertilizers on croplands • • • • • • • • • • • 3) Effects of global warming -heat-related illnesses and death, and spread of infectious diseases -melting of polar ice caps and rising of sea levels -extreme weather patterns such as severe storms, heat waves, floods and droughts -widespread extinction of species 4) Some possible solutions -reducing energy use -planting trees or plants -using green methods of transport 5) Conclusion (summarize the main points and state your opinion) 3.Now write your essay (between 160-180 words), using the helpful expressions in the box, the outline and your notes in