アメリカ自然史博物館さんのインスタグラム写真 - (アメリカ自然史博物館Instagram)「Happy Earth Day! 🌎 Let’s celebrate our home planet, Earth, and remember to treat it kindly. Of all the objects in our solar system, only Earth can support life as we know it. Why? Our planet is the right size, and the right distance from the Sun. Its temperature range is such that its free water is present and available for life. However, human activity is causing worldwide temperatures to rise higher and faster than any time we know of in the past. The choices we make today could reduce the chances of the most serious potential consequences. But it will take everyone working together around the world. Photo 1: Diana Robinson, CC BY-NC-ND 2.0, flickr Photo 2: SkandyQC, CC BY-NC-ND 2.0, flickr Photo 3: G. Lamar, CC BY 2.0, flickr Photo 4: Michael Levine-Clark,CC BY-NC-ND 2.0, flickr Photo 5: Diana Robinson, CC BY-NC-ND 2.0, flickr #science #nature #naturalworld #naturephotography #scenic #planetearth」4月23日 0時51分