Urgent] Write an essay on environmental protection with the theme of "navigation", with not too many words, only 75- 100 words.

Make a long voyage

During the ice age of 5026, I sailed from south to north on the cold and quiet water of Noah's Ark. The water is black, and so is the sky. I tried to keep my eyes open, but I still couldn't tell the boundary between heaven and water. There is only endless darkness. Occasionally there are some similar creatures moaning in the fuzzy air, but I know it's just a machine left over from an abandoned city. A cold wind blew and acid rain began to fall from the sky. I quickly put on my gas helmet. The rain stopped soon, and I couldn't wait to take off my helmet, but I smelled an unbearable rancid and sour smell. I don't know why, but I cry silently. Tears wet my pillow, and I woke up, but everything in my dream made me immersed in an unspeakable sadness for a long time. ...