Read the text and fill in the gaps using the words from the list.

Global warming happens because we burn ... which produce ... .These will ... our world by up to 3°C, which means big ... . Mountain glaciers and the ... are ... fast. Parts of the world in ... areas may ... completely in 100 years. Many animals are also ... , like the polar bear, which may become ... . Extreme weather such as hurricanes and ... will also become more frequent.