Montreal Protocol The Montreal Protocol on Substances That Deplete the Ozone Layer is an international treaty designed to protect the ozone layer by phasing out the production of a number of substances believed to be responsible for ozone depletion. The treaty entered into force on January 1, 1989...
ontheeartheverysecond ●2.4Neonatesbornintheworld.●extracted28.6tonsofmetal.●produce1.3cars.●CO2emissionsof760tonsworldwide.●Decreaseof0.6squarekilometersforest.Theworld's toptenenvironmentalproblems ◆1.Globalwarming---全球变暖◆2.Ozonelayerdepletion---臭氧层破坏◆3.Lossofbiodiversity---生物多样...
a hole: ozone depletion 臭氧层空洞about the tunnel he was digging through time:about the tunnel he was drilling for samples from the glacier, which estimates the time. The deeper he drilled, the farther the sample in time; in other words, the surface of the glacier is an indication of ...
Ozone forms a layer in the stratosphere, thinnest in the tropics (around the equator) and denser towards the poles. The amount of ozone above a point on the earths surface is measured in Dobson units (DU) - typically ~260 DU near the tropics and higher elsewhere, though there are large ...
(全球生态系统),.,NO.2,Ozone layer depletion,NO.3,Loss of biodiversity,NO.4,The spread of acid rain,Global,extinction,of 50,000 species/year,140/day on average.,pH 5.6,referred as acid rain.,Main hazards:,Water and soil,acidification,(,酸化,),plant and animal,death,corrosion,(,腐蚀,)...
undergroundwater地下水 drinkingwater饮用水Waterbody水体Contaminate污染Rhine莱茵河Greenhouseeffect温室效应Groundlevelozone地面臭氧 particulatematter微粒物质 biologicalmaterials生物材料 respiratorydisease呼吸疾病 stationarysources固定污染源 word Focal焦点的 Quota定额 globalwarming全球变暖Coordinate使协调 gaseoussystem气态系统...
Protection of the ozone layer In order to protect the ozone layer, the international community for countries to reduce and phase out HCFCs and other ozone depleting substances emissions, develo ped countries, demands to stop the use of HCFCs in 200 ...
历届世界环境日主题：1974年1975年1976年1977年1978年 OnlyoneEarth只有一个地球 HumanSettlements人类居住 Water:VitalResourceforLife水：生命的重要源泉 OzoneLayerEnvironmentalConcern;LandsLossandSoil Degradation;Firewood关注臭氧层破坏、水士流失、土壤退化和滥伐森林 Development没有破坏的发展 Without Destruction ...
Ozone layer depletion Loss of biodiversity The spread of acid rain◆ Global extinction of 50,000 species / year,140 / day on average.◆ pH < referred as acid rain.◆ Main hazards:Water and soil acidification(酸化), plant and animal death, corrosion(腐蚀) buildings, railways and bridges and...
This photograph of an Arctic polar stratospheric cloud (PSC) was taken from the ground at Kiruna, Sweden (67°N), on 27 January 2000. PSCs form in the ozone layer during winters in the Arctic and Antarctic stratospheres wherever low temperatures occur. * An image of total ozone column ...