标题：公益广告大自然在说话《海洋》

章节概要：无（这是一段独白，无需章节划分）

详细内容：I am the ocean. I'm water. I'm most of this planet. I shaped it. Every stream, every cloud, and every raindrop. It all comes back to me. One way or another. Every living thing here needs me. I'm the source. I'm what they crawled out of. Humans? We're no different. I don't owe them a thing. I give. They take. But I can always take back. That's just the way it's always been. It's not their planet anyway. Never was. Never will be. But humans, they take more than their share. They poison me, then they expect me to feed them. Well, it doesn't work that way. If humans want to exist in nature with me and off of me, I suggest they listen close. I'm only gonna say this once. If nature isn't kept healthy, Humans won't survive. Simple as that. Me? I could exist with or without humans. I'm the ocean. I covered this entire planet once. And I can always cover it again. That's all I have to say.

总结：这段文本以海洋的口吻进行独白，表达了海洋是地球的重要组成部分，万物生存都依赖海洋，然而人类过度索取、破坏海洋，海洋警告人类如果不保护自然，人类将无法生存的中心思想。