To bring across that, "Global Warming is caused by humans, making lives stand on a cliff."

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it is a message to be aware that environmental changes for good or bad depending on us. the climate will change for the better if we start by reducing greenhouse gasses and deforestation and allow the earth to repair and rebuild its own health, allowing lives to be safe from extinction. on the other hand, the climate can continue to progress for the worse if we do not do anything about greenhouse gasses and deforestation, which may cause lives to be at stake.