<span>The lines from "Mending Wall" that best indicate that the speaker is amused while repairing the wall are these ones: We have to use a spell to make them balance: / "Stay where you are until our backs are turned!" This sentence shows the playfulness in the narrator's voice, as opposed to other lines that are far more serious. The speaker finds something quite amusing which is why he utters these lines. His repairing of the wall is being distracted by the events around him that seem to interest him more.</span>
Al Gore shows that the levels of atmosphere carbon dioxide have varied throughout Earth's history. In the graph, the carbon dioxide levels have significantly increased recently. It is the highest the level has ever been and is expected to continue to rise. In his presentation, he shows that the levels of carbon dioxide in the atmosphere have a direct correlation to the temperature of the Earth. If carbon dioxide levels go up, so does the Earth's temperature. He states that this is important because the temperature of the Earth affects the weather as well as the disappearance of the polar ice caps. He makes this point about carbon dioxide levels to encourage the people of the world to do something before global warming becomes an even larger problem.
