If we plant more trees, - animals and bugs will have more places to live., If we don't stop global warming,  - the ice at the North Pole and South Pole will melt. , If we walk or cycle more,  - we'll produce less air pollution. , If we pick up trash,  - we'll have cleaner sidewalks., If we recycle plastic,  - it won't end up in the ocean., If we don't keep lakes and rivers clean,  - fish and animals in the water will die. ,

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