属实。气候变化通常发生在数十万年或更长时间， 即使突然的自然变化也需要数千年的时间。人类大大加速了变化速度， 一旦冰融化，海平面上升，就没有已知的方法可以快速逆转这一过程。无论近百年的变化，还是万年来的变化都显示了二氧化碳与温度正相关的问题： While sea level and climate have changed in the past, it was LONG before our human civilization. Normally climate changes happen over hundreds of thousands of years or longer. Even abrupt natural changes take thousands of years. Once the ice melts and sea level rises, there is no known way to reverse the process quickly. 五十万年前至今的变化：
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根本不关心！
While sea level and climate have changed in the past, it was LONG before our human civilization. Normally climate changes happen over hundreds of thousands of years or longer. Even abrupt natural changes take thousands of years. Once the ice melts and sea level rises, there is no known way to reverse the process quickly.