The greenhouse effect 温室效应
因为温室效应，地球正在升温。当化石燃料燃烧时，释放出的二氧化碳进入大方层，像毯子一样将地球裹起来，这意味着热辐射没办法发散，使地球表面温度升高。这个现象是地球上出现愈加多极端天气事件是什么原因之一。为减缓这种情况的加剧，大家可以在家用更节能的电器、尝试以蔬菜为主的饮食结构。本期节目介绍什么是温室效应。
词语：climate change 气候变化
Our planet isheating updue to something called thegreenhouse effect. This is one of the reasons why Earth is seeing moreextreme weatherevents, such asheatwaves, forest fires and floods each year. But what exactly is the greenhouse effect, and what can we do to reduce it?
Lets first think about agreenhouse you may have one in your garden! Its a glass structure that protects plants against lowtemperaturesbytrappingheat inside. But, while this helps your plants grow, Earth is trapping heat in the same way, and its causingglobal warming. Whenfossil fuels, such as coal, oil and gas, are burnt for power,carbon dioxideis released as awaste product. It enters theatmosphereand acts like a blanket around the planet, which means heatradiationcant escape and the temperature increases.
The impact ofgaseson the Earthsclimatewas first investigated in the 1820s. Eunice Foote, a scientist and womens rights activist, tested the effects ofsunlighton different gases that she put into glass cylinders. Her results showed that carbon dioxide traps heat more than other gases. The idea of the greenhouse effect was born.
So, what can we do to reduce the greenhouse effect? The UN recommends using moreenergy-efficientelectrical appliances at home and switching toLED lightbulbs. Also, by washing your clothes at 30 instead of a higher temperature, around 40% less electricity is used over a year, according to the Energy Saving Trust. A change in diet is also something to consider. The charity A Well-Fed World, claim thatplant-basedfoods, as opposed to meat and dairy, need less land and water to be produced. So, switching saves energy and lower百度竞价推广issions, which contribute to climate change.
We only have one planet, so lets try and take care of it as much as we can.
词语表
heat up 变暖
greenhouse effect 温室效应
extreme weather 极端天气
heatwave 热浪，酷暑期
greenhouse 温室，暖房
temperature 气温
trap 吸收，保存
global warming 全球变暖
fossil fuel 矿石燃料
carbon dioxide 二氧化碳
waste product 废物
atmosphere 大方层
radiation 辐射
gas 气体
climate 气候
sunlight 阳光
energy-efficient 节能的，高能效的
LED lightbulb 发光二极管灯泡
plant-based 仅有蔬菜的，全素的
emission 排放
