。根据题干定位到文章第一段第一句Global warming poses a threat to the earth, but humans can probably ease the climate threats brought on by rising levels of carbon dioxide in the atmosphere, global climate specialist Richard Alley told an audience at the University of Vermont(全球气候专家理查德...
课文回顾Global warming refers to an average increase in theEarth's temperature.Greenhouse gases like carbon dioxidetrap heat from the sun in the Earth's atmosphere.When the1.present of these gases in the atmosphereincreases,more heat is trapped and the Earth's temperaturerises.Over the last ...
Thomas, G. E., Are noctilucent clouds harbingers of global change in the middle atmo- sphere?, Adv. Space Res., 32(9), 1737-1746, doi:10.1016/S0273-1177(03)00674-4, 2003.Thomas, G.E., Are noctilucent clouds harbingers of global change in the middle atmosphere? Adv. Space Res.,...
The Earth has warmed up before, but this was the result of things like wobbles in the Earth's orbit, not because of an increase of greenhouse gases in the atmosphere. Neil Can we reverse the changes? Alice No, it's too late, and now we have to ...
While scientists agree that human-produced compounds (化合物) like carbon dioxide and others are being released into the atmosphere,some argue it's not clear how his leads (68)___the changes in temperature.Global warming can(69)___ (great) affect human life on many levels.Scientists have ...
the average weather conditions, regular change of seasons, andspecial weather phenomenon (such as typhoons). A warmerEarth may lead to changes in rainfall patterns and a rise in sealevel. It could also have a wide range of effects on plants,wildlife, and humans. Earth has warmed by about ...
题目___contribute(s)to the greenhouse effect(global warming)and hence to changes in the Earth's atmosphere. A. Nitrogen oxides B. Carbon monoxide C. Carbon dioxide D. Hydrocarbons 相关知识点: 试题来源: 解析 C 反馈 收藏
Naturally-occurring El Nino shows up whenever ocean surface temperatures in the eastern-central Pacific become warmer than usual, due to changes in trade winds. Man-made global warming -- driven mainly by carbon dioxide emissions from burning fossil fuels that trap heat in the atmosphere and cause...
The brighter the clouds, the more their numbers change over the solar cycle. The cyclic change is likely due to small changes in mesospheric temperature and water vapor, induced by the solar cycle variation of UV irradiance. There is an unexplained several-year time lag between solar cycle ...
4) 气候反常,海洋风暴增多.5) 土地干旱,沙漠化面积增大对人类生活的潜在影响 Environmental effect 1) climate transformation: The whole world changes warm for example: Atmosphere cloud amount and circulation transformation.Middle certain transformations may cause the ground to change the warm aggravating (...