Completar frases ReadingVersión en línea Complete the text . Global warning por chiara paz small 1 causing are is changing melting is having getting rising is cutting are increasing is are are Power stations , cars and factories produce carbon dioxide ( CO2 ) , Trees and plants change it back to oxygen , but we a . down trees in the Amazon rainforest , so the amount of carbon dioxide in the air b . . The carbon dioxide allows radiation from the sun to enter the atmosphere but not to leave it . This c . the atmosphere to heat up . Scientists think that the polar ice caps and glaciers around the world d . . This is creating more water and the level of the sea e . . In many parts of the world there is a possibility of floods on land near the coast . In general , the world's climate f . . This means warm areas g . colder winters , and previously cold areas h . warmer .
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