:environmentals are worried about the greenhouse effect. make sentences, using the scheme if …, … will … . model: if the earth gets warmer, the sea will get warmer. if the sea gets warmer, … . : if the weather gets warmer ↓ the sea gets warmer ↓ the ice at the north and south poles melts ↓ the sea level rises ↓ there are floods in many parts of the world ↓ many people lose their homes and land ↓

If the weather gets warmer  the sea will get warmer
If the sea gets warmer the ice at the North and South Poles will  melt
If the ice at the North and South Poles melts the sea level will rise
If the sea level rises there will be floods in many parts of the world
If there are floods in many parts of the world many people will lose their homes and land
If many people lose their homes and land  there will be a lot of refugees