“Our atmosphere, thrown as a barrier across the terrestrial rays, produces a local heightening of the temperature at the Earth’s surface,” Irish physicist John Tyndall said in 1862, identifying water vapor and carbon dioxide as natural greenhouse gases trapping heat. Then in 1896, Swedish che...
The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere. It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up." 许多科学家认为,人们为了生产能量而燃烧化石燃料(如煤、天然气和石油等),从而引起了地球温度的...
9. This is when small amounts of gases in the atmosphere, like carbon dioxide, methane and water vapour, trap heat from the sun and therefore warm the earth. 这种现象发生在大气层中少量的气体(如二氧化碳、甲皖、水蒸汽等)吸收太阳的热量,因而使地球变暖的时候。10. Without the greenhouse effect,...
They trap in heat which warms up the earth. Professor: Gases like? Student: Um, water vapor? Carbon dioxide? Professor: Right. Carbon dioxide. We hear a lot about carbon these days, no? Carbon emissions, carbon burning, leaving a carbon footprint. ...
FEMALE STUDENT: The greenhouse effect is when gases in Earth's atmosphere act like the glass in a greenhouse, or hothouse—they trap in heat, which warms up the Earth. MALE PROFESSOR: Gases like …? FEMALE STUDENT: Um, water vapor, carbon dioxide… ...
13.Itmeansthatmoreheatenergytendstobetrappedintheatmospherecausingtheglobaltemperaturetogoup."这意味着更多的热量被困在大气层中,从而引起全球温度上升。" 14.Weknowthatthelevelsofcarbondioxidehaveincreasedgreatlyoverthelast100to150years.我们知道,在过去100-150年期间,二氧化碳的含量急剧增加了。15.Itwasascientist...
In this way, the earth is warmed. At night, the earth cools by radiating heat into space in the form of infrared radiation. As the earth gains heat by day and loses it by night, it maintains a balance. However, carbon dioxide tends to block such radiation. This is called the “...
would be6. causing 7.up 8. disappearance9.the10.actuallyI . One possible version:The earth is becoming warmer because of humanactivities, especially the burning of carbon fossil fuels.(要点1)All scientists accept that the levels of carbon dioxidehave increased.(要点2) However, there are very...
be about thirty-three degrees Celsius cooler than it is.So,we need those gases.The problem begins when we add huge quantities of extra carbon dioxide into the atmosphere.It means that more heat energy tends to be trapped in the atmosphere causing the global temperature to go up....
MALE PROFESSOR: In fact, studies indicate that four billion years ago, carbon dioxide levels in the atmosphere were much higher than today's levels.But the studies also indicate that they weren't high enough to do the job—take up for a faint Sun. Well,...