Cambridge Secondary (7-9). Stage 7. MCE Science. Workbook - Unit 1: Introducing Science - Question 48

Fossil fuels are used to generate electricity. Burning fossil fuels gives off carbon dioxide. Scientists have observed that carbon dioxide levels in the atmosphere are rising. This is causing temperatures in many parts of the world to increase. Melting ice, in glaciers and in the Antarctic, is causing sea levels to rise.

Polar bears live on the ice of the Arctic. What could happen to polar bears if there is too little ice?