【正确答案】正确答案： The Greenhouse Effect To get a better understanding of global warming, / it is important to understand the greenhouse effect. / The greenhouse effect is the rise in the temperature / caused by absorption of the Sun's heat and light by the Earth's surface / which then is reflected back and trapped within the Earth's atmosphere. / The greenhouses gases, help to keep the Earth warm, / and this is the reason why life on Earth has existed, and still thrives. / However, with an increase in the gases like carbon dioxide, ozone, / Earth has gotten nearly 14% hotter / than what it used to be 50 years ago. /