Complete with: global, fossil, greenhouse, lose, caps, threat, temperature, extinct. 1 Sea levels will rise and cause widespread flooding if the polar ice ..... melt. 2 A rise in ..... will cause more heatwaves. 3 ..... warming is one of the biggest issues facing our planet today. 4 We will need to find an alternative power source when ..... fuels run out. 5 Carbon dioxide is a ..... gas which traps heat above the Earth. 6 Our way of life is under ..... because of the changing climate. 7 Deforestation is causing a number of species to ..... their habitats. 8 Soon a number of plants and animals could become ..... like the dinosaurs.