Why cities should plant more trees Over 3 million people die annually from air pollution. Planting trees can help lower that number. February 12, 2018 Ecology, Education, Environment Share This Video Tweet Share Share Email Related Videos Sustainability for All: Jonathon Porritt Animal, Ecology, Education, Environment, Health, Human Sustainability for All: Jonathon Porritt OCEAN TRASH: 5.25 Trillion pieces and Counting Ecology, Environment OCEAN TRASH: 5.25 Trillion pieces and Counting Biology: Cell Structure Ecology, Education Biology: Cell Structure
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