Earthquakes have become more frequent., Some coral reefs in marine waters have vanished all over the world., Some endangered species have disappeared., The number of hurricanes has doubled over the past century., The surface of the Arctic ice cap has melted by 20% from 1984 to 2024., The Earth has got (= become) warmer., The sea level has risen globally., Pollution from vehicles has increased dramatically., Water supply has decreased on Earth.,

Environmental problems (Present perfect)

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