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范文一：温室效应英语演讲稿
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温室效应英语演讲稿
The United Nations panel on climate change projects that the global temperatures will rise 3-10 degrees fahrenheit by the centurys end - enough to have the polar caps all but melted. If the ice caps melt, a vast majority of our countries borders will be under water. Monuments and great buildings, as well as homes and lives will be under water, including New York City.
So now we know what some of the causes are for global warming, how can we as individuals do our part to help save the planet?
The answer is si-mp-ler than you may think. You dont have to go miles away from home to protest, or spend masses of money. If you try to follow the few si-mp-le steps that I shall now give you, you will have started to help us all.
Firstly, plant a tree. This could be easier than it sounds. Join or help out a local wildlife group and ask to plant a tree. Trees, when fully grown, will help keep the planet cooler. On the same point, you could protest against the demolition of the rainforests. This is the same principle, we need the trees to cool our
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planet and yet they are chopping them down to create roads or homes.
Something as si-mp-le as walking instead of taking the car will help reduce pollution. As well as stopping pollution, you are giving yourself exercise, something important for our bodies. So the next time you get into your car, or your motorbike, think - do I have to make this journey by vehicle or can I walk?
When you are at home, and your getting a little cold. Put a jumper on and do not adjust the heating. The extra heat produced by our homes also affects the planet. So try wearing an extra layer in winter.
If possible, buy your fruit and vegetables from local suppliers. And try to avoid imported goods. The more foreign food that we import the more pollution from aeroplanes and boats it will create.
Keeping to the speed limit can also help the environment. The more you speed the more petrol you are going to use, ma-ki-ng the pollution higher. Also, SUVs make about six times their own weight in CO2 each year. A small efficient diesel car covering the same distance not only uses much less fuel; it makes two thirds less.
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If possible use solar energy, after all it is free; all you need to buy is the equipment. You can get much of your hot water and heating from the sun and even generate electricity.
Reduce, reuse and recycle. Only buy what you need; dont stock the cupboards with things you may or may not use. Reuse whatever you can, like containers and pa-pe-r, and recycle what you cannot reuse. It really is as si-mp-le as that.
Finally turning off unused sources of power such as televisions and heaters will help the environment, as well as save you money.
If everybody stuck to these rules, we would be doing a great thing by protecting the earth. So please take into consideration what I have said, and try to do your part. After all, it will be our next generation that will feel the effects.
温室效应英语演讲稿 [篇2]
according to the national academy of sciences, the earth’s surf-ace temperature has risen by about 1
degree fahrenheit in the past century, with accelerated warming during the past two decades. there is new and
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stronger evidence that most of the warming over the last 50 years is attributable to human #url#
human activities have altered the chemical composition of the atmosphere through the buildup of greenhouse gases – primarily carbon dioxide, methane, and nitrous oxide. the heat-trapping property of these gases is undisputed although uncertainties exist about exactly how earth’s climate responds to them.
energy from the sun drives the earth’s weather and climate, and heats the earth’s surf-ace; in turn,
the earth radiates energy back into space. atmospheric greenhouse gases, such as water vapor, carbon dioxide, trap some of the outgoing energy, retaining heat somewhat like the glass panels of a greenhouse.
without this natural “greenhouse effect,” temperatures would be much lower than they are now, and life as known today would not be possible. instead, thanks to greenhouse gases, the earth’s average temperature is a more hospitable 60?#url#
however, problems may arise when the atmospheric concentration of greenhouse gases increases. once, all climate changes occurred naturally. however, during
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the industrial revolution, we began altering our climate and environment through changing agricultural and industrial practices.
before the industrial revolution, human activity released very few gases into the atmosphere, but now through population growth, fossil fuel burning, and deforestation, we are affecting the mixture of gases in the atmosphere.
carbon dioxide is released to the atmosphere when solid waste, fossil fuel and wood products are burned. methane is emitted during the production and transport of coal, natural gas, and oil. methane emissions also result from the decomposition of organic wastes in municipal solid waste landfills, and the raising of livestock. nitrous oxide is emitted during
agricultural and industrial activities, as well as during combustion of solid waste and fossil fuels.
rising global temperatures are expected to raise sea level, and change precipitation and other local climate conditions. changing regional climate could alter forests, crop yields, and water supplies. it could also affect human health, animals, and many types
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of ecosystems and deserts may expand into existing rangelands. unless we act now, our children will inherit a hotter world, dirtier air and water, more severe floods and droughts, and more wildfires.
but solutions are in sight. we know where most heat-trapping gases come from: power plants and vehicles. and we know how to curb their emissions: modern technologies and stronger laws. by shifting the perception of global warming from abstract threat to pressing reality, and promoting online activism. by pressing businesses to use less energy and build more efficient products. and by fighting for laws that will speed these advances.
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范文二：温室效应英语演讲稿
温室效应?英语?演讲?稿?
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温室效?应英?语演?讲稿?Th?er?e ?is? l?it?tl?e ?do?ub??t th?at? t?he? p?la?ne?t ?is? a?rm?in?g.? O?ve?r ?th?e ?la?st?? ent?ur?, ?th?e ?pl?an?et?s ?te?mp?er?at?ur?e ?ha?s ?ri?se?n ??b ar?ou?nd? 1? d?eg?re?e ?fa?hr?en?he?it? .? T?he? a?rm?es?t ??sine? t?he? ?mid?00?s ?as? t??he90?s.? T?he? h?ot?te?st? e?ar?s ?re?or?de?d ?er?e9?7,?98?, ??2001?, ?20?1X?, ?20?0 ? 3?.T?he? U?ni?te?d ?Na?ti?on?s ?pa?ne??l on? l?im?at?e ?ha?ng?e ?pr?oj?et?s ?th?at? t?he? g?lo?ba?l ??temp?er?at?ur?es? i?ll? r?is?e ?3-?10? d?eg?re?es? f?ah?re?nh??eit ?b ?th?e ?en?tu?rs? e?nd? -? e?no?ug?h ?to? h?av?e ?th?e ??pola?r ?ap?s ?al?l ?bu?t ?me?lt?ed?. ? I?f ?th?e ?ie? a?ps? m??elt,? a? v?as?t ?ma?jo?ri?t ?of? o?ur? o?un?tr?ie?s ?bo?rd?er??s il?l ?be? u?nd?er? a?te?r.? M?on?um?en?ts? a?nd? g?re?at? b??uild?in?gs?, ?as? ?ell? a?s ??home?s ?an?d ?li?ve?s ?il?l ?be? u?nd?er? a?te?r,? i?nl?ud?in??g Ne? Y?or?k ?Ci?t.?So? n?o ?e ?kn?o ?ha?t ?so?me? o?f ?th?e ??ause?s ?ar?e ?fo?r ?gl?ob?al? a?rm?in?g,? ?ho ?an? e? a?s ?in?di?vi?du?al?s ?do? o?ur? p?ar??t to? h?el?p ?sa?ve? t?he? ?p?lane?t??Th?e ?an?se?r ?is? s?i-?mp?-l?er? t?ha?n ?ou? m?a ?th??ink.? Y?ou? d?on?t ?ha?ve? ?t?o go? m?il?es? X?X ?fr?om? h?om?e ?to? p?ro?te?st?, ?or? s?pe??nd m?as?se?s ?of? m?on?e.? ?I?f ou? t?r ?to? f?ol?lo? t?he? f??e si?-m?p-?le? s?te?ps? t?ha??t I ?sh?al?l ?no? g?iv?e ?ou?, ?ou? i?ll? h?av?e ?st?ar?te?d ??to h?el?p ?us? a?ll?.F?ir?st?l,? p?la?nt? a? t?re?e.? ?Thi?s ?ou?ld? b?e ?ea?si?er? t?ha?n ??it s?ou?nd?s.? J?oi?n ?or? h?el?p ?ou?t ?a ?lo?al? ?ild?li?fe? g?ro?up? a?nd? a?sk? t?o ?pl??ant ?a ?tr?ee?. ?Tr?ee?s,? h?en? f?ul?l ?gr?on?, ?il?l ?he?lp?? kee?p ?th?e ?pl?an??et o?ol?er?. ?On? t?he? s?am?e ?po?in?t,?? ou ?ou?ld? ?pro?te?st? a?ga??inst? t?he? d?em?ol?it?io?n ?of? t?he? r?ai?nf?or?es?ts?. ?Th??is i?s ?th?e ?sa?me? p?ri?ni?pl?e,? e? n?ee?d ?th?e ?tr?ee?s ??to o?ol? o?ur? p?la?ne?t ?an?d ?et? ?the? a?re? h?op?pi?ng? t?he?m ?do?n ?to? r?ea?te? r?oa??ds o?r ?ho?me?s.?So?me?th?in?g ?as? ?
si-?mp?-l?e ?as? a?lk?in?g ?in?st?ea?d ?of? t?ak?in?g ?th?e ?ar? i??ll h?el?p ?re?du?e ?po?ll?ut?io?n.? A?s ?el?l ?as? s?to?pp?in?g ?po??llut?io?n,? o?u ?ar?e ?gi?vi?ng? ?our?se?lf? e?xe?ri?se?, ?so?me?th?in?g ?im?po?rt?an?t ?fo?r ?ou?r ??bodi?es?. ?So? t?he? ?nex?t ?ti??me o?u ?ge?t ?in?to? o?ur? a?r,? o?r ?ou?r ?mo?to?rb?ik?e,? t?hi?nk?? - d?o ?I ?ha?ve? t?o ?ma?ke? t?hi?s ?jo?ur?ne? b? v?eh?il?e ?or? a??n I ?al?k??Wh?en? o?u ?ar?e ?at? ?hom?e,? a?nd? o?ur? g?et?ti?ng? a? l?it?tl?e ?ol?d.? P?ut? a? j?um??per ?on? a?nd? d?o ?no?t ?ad?ju?st? t?he? h?ea?ti?ng?. ? T?he? e?xt??ra h?ea?t ?pr?od?ue?d ?b ?ou?r ?ho?me?s ?al?so? a?ff?et?s ?th?e ?pl??anet?. ?So? t?r ?ea?ri?ng? a?n ?ex?tr?a ?la?er? i?n ?in?te?r.?If? p??ossi?bl?e,?? bu ?ou?r ?fr?ui?t ?an?d ?ve?ge?ta?bl?es? f?ro?m ?lo?al?? sup?pl?ie?rs?. ?An?d ?tr? t?o ??avoi?d ?im?po?rt?ed? g?oo?ds?. ?Th?e ?mo?re? f?or?ei?gn? ?foo?d ?th?at? e? i?mp?or?t ?th?e ?mo?re? p??ollu?ti?on? f?ro?m ?ae?ro?pl?an?es? a?nd? ?boa?ts? i?t ?il?l ?re?at?e.?Ke?ep?in?g ?to? t?he? s?pe?ed?? lim?it? a?n ?al?so? h?el?p ?th?e ?en?vi?ro?nm?en?t.? T?he? m?or?e ??ou s?pe?ed? t?he? m?or?e ?pe?tr?ol? o?u ?ar?e ?go?in?g ?to? u?se?, ??ma-k?i-?ng? t?he? p?ol?lu?ti?on? h?ig?he?r.? A?ls?o,? S?UV?s ?ma?ke?? abo?ut? s?ix? t?im?es? t?he?ir?? on ?ei?gh??t in? C?O2? e?ah? e?ar?. ?A ?sm?al?l ?ef?fi?ie?nt? d?ie??sel ?ar? o?ve?ri?ng? t?he? s?am?e ?di?st?an?e ?no?t ?on?l ?us?es? m??uh ?les?s ?fu?el?; ?it? m?ak?es?? to ?th?ir?ds? l?es?s.??If p?os?si?bl?e ?us?e ?so?la?r ?en?er?g,? a??fter? a?ll? i?t ?is? f?re?e;? a?ll? o?u ?ne?ed? t?o ?bu? i?s ?th?e ??equi?pm?en?t.? Y?ou? a?n ?ge?t ?mu?h ?of? o?ur? h?ot? a?te?r ?an??d ?heat?in?g ?fr?om? ?the? s?un? a??nd e?ve?n ?ge?ne?ra?te? e?le?tr?ii?t.?Re?du?e,? r?eu?se? a?nd? r?el??e. O?nl? ?bu ?ha?t ?ou? n?ee?d;?? don?t ?st?ok? t?he? u?pb?oa?rd?s ?it?h ?th?in?gs? o?u ?ma? o?r ?ma?? not? u?se?. ?Re?us?e ?ha?te?ve??r ou? a?n,? l?ik?e ?on?ta?in?er?s ?an?d ?pa?-p?e-?r,? a?nd? ?rel?e ?ha?t ?ou? a?nn?ot? r?eu?se?. ?It?? rea?ll? i?s ?as?? si-?mp?-l?e ?as? ?tha?t.?Fi?na?ll? t?ur?ni?ng? o?ff? u?nu?se?d ?so?ur?es? o?f ?po??er s?uh? a?s ?
te?le?vi?si?on?s ?an?d ?he?at?er??s il?l ?he?lp? t?he? e?nv?ir?on?me?nt?, ?as? e?ll? a?s ?sa?ve? o?u ??mone?.I?f ?ev?er?bo?d ?st?uk? t?o ?th?es?e ?ru?le?s,? e? o?ul?d ?be?? doi?ng? ?a g?re?at? t?hi?ng? b?? pro?te?ti?ng? t?he? e?ar?th?. ?So? p?le?as?e ?ta?ke? i?nt?o ?on?si??dera?ti?on? h?at? I? h?av?e ?sa?id?, ?an?d ?tr? t?o ?do? o?ur? p?ar??t. A?ft?er? ?all?, ?it? i?ll? b??e ou?r ?ne?xt? g?en?er?at?io?n ?th?at? i?ll? f?ee?l ?th?e ?ef?fe?ts??.温室效?应英?语演?讲稿? a?or?di?ng? t?o ??the ?na?ti?on?al? X?Xd?em? o?f ?si?en?es?, ?th?e ?ea?rt?h'?s ?su?rf??-ae ?te?mp?er?at?ur?e ?ha?s ?ri?se?n ?b ?ab?ou?t ?1 ?de?gr?ee? ?fah?re?nh?ei?t ?in? t?he? p?as?t ?en??tur,? i?th? a?el?er?at?ed? a?rm?in?g ?du?ri?ng? t?he? ?pas?t ?to? d?ea?de?s.? t?he?re? i?s ?ne? a?nd?? str?on?ge?r ?ev?id?en?e ?th?at? m?os?t ?of? ?the? a?rm?in?g ?ov?er? t?he? l?as?t ?50? e?ar?s ?is? a??ttri?bu?ta?bl?e ?to? h?um?an? ?#?url#?hu?ma?n ?at?iv?it?ie?s ?ha?ve? a?lt?er?ed? t?he? h?em?ia?l ?po??siti?on? o?f ?th?e ?at?mo?sp?he?re? t?hr?ou?gh? t?he? b?ui?ld?up? o??f gr?ee?nh?ou?se? g?as?es? ?– ?pri?ma?ri?l ?ar?bo?n ?di?ox?id?e,?? met??hane?, ?an?d ?ni?tr?ou?s ?ox?id?e.? t?he? h?ea?t-?tr?ap?pi?ng?? pro?pe?rt? o?f ?th?es?e ?ga?se?s ?is? u?nd?is?pu?te?d ?al?th?ou?gh?? une?rt?ai?nt?ie?s ?ex?is?t ?ab??out ?ex?at?l ?ho? e?ar??th’s? l?im?at?e ?re?sp?on?ds? t?o ?th?em?.e??nerg? f?ro?m ?th?e ?su?n ?dr?iv?es? t?he? e?ar?th?'s? e?at?he?r ?an??d li?ma?te?, ?an?d ?he?at?s ?th?e ?ea?rt?h'?s ?su?rf?-a?e;? i?n ?tu??rn, ??the ?ea?rt?h ?ra?di?at?es? ?ene?rg? b?ak? i?nt?o ?sp?ae?. ?at?mo?sp?he?ri? g?re?en?ho?us?e ?ga??ses,? s?uh? a?s ?at?er? ?vap?or??, ar?bo?n ?di?ox?id?e,? t?ra?p ?so?me? o?f ?th?e ?ou?tg?oi?ng? e?ne??rg, ?re?ta?in?in?g ?he?at? s?om?eh?at? l?ik?e ?th?e ?gl?as?s ?pa?ne??ls o?f ?a ?gr?ee?nh?ou?se?.i?th?ou?t ?th?is? n?at?ur?al? "?gr?ee?nh??ouse? e?ff?et?,"? ?tem?pe?ra?tu??res ?ou?ld? b?e ?mu?h ?lo?er? t?ha?n ?th?e ?ar?e ?no?, ?an?d ?li?fe?? as ?kn?on? t?od?a ?ou?ld? n?ot? b?e ?po?ss?ib?le?. ?in?st?ea?d,? t??hank?s ?to? g?re?en?ho?us?e ?ga?se?s,? t?he? e?ar?th??'s a?ve?ra?ge?? tem?pe?ra?tu?re? i?s ?a ?mo?re? h?os?pi?ta?bl?e ?
60??#?ur?l#?ho?ev?er?, ?pr?ob?le??ms m?a ?ar?is?e ?he?n ?th?e ?at?mo?sp?he?ri? ?one?nt?ra?ti?on? o?f ?gr?ee?nh?ou?se? g?as?es? i?nr?ea??ses.? o?ne?, ?al?l ?li?ma?te? ?h?ange?s ?ou?rr?ed? n?at?ur?al?l.? h?oe?ve?r,? d?ur?in?g ?th?e ?in?du??stri?al? ?rev?ol?ut?io?n,? e? b??egan? a?lt?er?in?g ?ou?r ?li?ma?te? a?nd? e?nv?ir?on?me?nt? ?thr?ou?gh? h?an?gi?ng? a?gr?iu?lt?ur?al?? and? i?nd?us?tr?ia?l ?pr?at?ie?s.?be?fo?re? t?he? ?ind?us?tr?ia?l ?re?vo?lu?ti?on?, ?hu?ma?n ?at?iv??it r?el?ea?se?d ?ve?r ?fe? g?as?es? ?int?o ?th?e ?at?mo?sp?he?re?, ?bu?t ?no? t?hr?ou?gh? p?op?ul?at??ion ?gr?ot?h,? f?os?si?l ?fu?el? b?ur?ni?ng?, ?an?d ?de?fo?re?st?at??ion,? e? a?re? a?ff?et?in?g ?th?e ?mi?xt?ur?e ?of? g?as?es? i?n ?th??e at?mo?sp?he?re?.a?rb?on? d?io??xide? i?s ?re?le?as?ed? t?o ?th?e ??atmo?sp?he?re? h?en? s?ol?id? a?st?e,? f?os?si?l ?fu?el? a?nd? o?od?? pro?du?ts? a?re? ?bur?ne?d.? m??etha?ne? i?s ?em?it?te?d ?du?ri?ng? t?he? p?ro?du?ti?on? a?nd? t?ra??nspo?rt? ?of ?oa?l,? n?at?ur?al?? gas?, ?an?d ?oi?l.? m?et?ha?ne? e?mi?ss?io?ns? a?ls?o ?re?su?lt? ?fro?m ?th?e ?de?po?si?ti?on? o?f ??orga?ni? a?st?es? i?n ?mu?ni?ip?al? s?ol?id? a?st?e ?la?nd?fi?ll?s,?? and? t?he? r?ai?si?ng? o?f ?li?ve?st?ok?. ?ni?tr?ou?s ?ox?id?e ?is?? emi?tt?ed? d?ur?in?g ?ag?ri?ul??tura?l ?an?d ?in?du?st?ri?al? a?ti?vi?ti?es?, ?as? e?ll? ?as ?du?ri?ng? b?us?ti?on? o?f ?so?li?d ?as??te a?nd? f?os?si?l ?fu?el?s.?ri?si?ng? ?glo?ba?l ?te?mp?er?at?ur?es? a?re? e?xp?et?ed? t?o ?ra?is?e ??sea ?le?ve?l,? a?nd? h?an?ge? ?p?reip?it?at?io?n ?an?d ?ot?he?r ?lo?al? l?im?at?e ?on?di?ti?on?s.? h??angi?ng? ?reg?io?na?l ?li?ma?te?? oul?d ?al?te?r ?fo?re?st?s,? r?op? i?el?ds?, ?an?d ?at?er? ?sup?pl?ie?s.? i?t ?ou?ld? a?ls?o ?af?fe??t hu?ma?n ?he?al?th?, ?an?im?al?s,? a?nd? m?an? ?tpe?s ?of? e?os?st?em?s ?an?d ?de?se?rt?s ?ma? e?xp??and ?in?to? e?xi?st?in?g ?ra?ng?el?an?ds?. ?un?le??ss e? a?t ?no?, ??our ?hi?ld?re?n ?il?l ?in?he?ri?t ?a ?ho?tt?er? ?orl?d,? d?ir?ti?er? a?ir? a?nd? a?te?r,? m?or?e ?se??vere? f?lo?od?s ?an?d ?dr?ou?gh?ts?, ?an?d ?mo?re? i?ld?fi?re?s.?bu??t so?lu?ti?on?s ?ar?e ?in? s?ig?ht?. ?e ?kn?o ?he?re? m?os?t ?
he?at?-t?ra?pp?in?g ?ga?se?s ?e ?fr?om?: ?po?er? p?la?nt?s ?an?d ?ve?hi?le?s.? a?nd? e? ?kno? h?o ?to? u??rb t?he?ir? e?mi?ss?io?ns?: ?mo?de??rn t?eh?no?lo?gi?es? a?nd? ?str?on?ge?r ?la?s.? b? s?hi?ft?in?g ?th?e ?pe?re?pt?io?n ?of? g?lo?ba?l ?ar?mi?ng? f?ro?m ?ab?st?ra?t ?th?re?at? t?o ?pr?es?si?ng? r?ea?li?t,? a?nd? p?ro?mo?ti?ng? o?nl?in?e ?at?iv?is?m.? b? p?re?ss?in?g ?bu?si?ne?ss?es? t?o ?us?e ?le?ss? e?ne?rg? a?nd? b?ui?ld? ?mor?e ?ef?fi?ie?nt? p?ro?du??ts. ?an?d ?b ?fi?gh?ti?ng? f?or? l??as t?ha?t ?il?l ?sp?ee?d ?th?es?e ??adva?ne?s.? ? ? ?
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范文三：温室效应英语演讲稿
温室效应英语演讲稿
温室效应英语演讲稿There is little doubt that the planet is
warming. Over the last century, the planets temperature has risen by around 1 degree fahrenheit (0.6 of a degree celsius). The warmest since the mid 1800s was the 1990s. The hottest years recorded were 1997, 1998, 2001, 2002, 2003.The United Nations panel on climate change projects that the global temperatures will rise 3-10 degrees fahrenheit by the centurys end - enough to have the polar caps all but melted. If the ice caps melt, a vast majority of our countries borders will be under water. Monuments and great buildings, as well as homes and lives will be under water, including New York City.So now we know what some of the causes are for global warming, how can we as individuals do our part to help save the planet?The answer is si-mp-ler than you may think. You dont have to go miles away from home to protest, or spend masses of money. If you try to follow the few si-mp-le steps that I shall now give you, you will have started to help us all.Firstly, plant a tree. This could be easier than it sounds. Join or help out a local wildlife group and ask to plant a tree. Trees, when fully grown, will help keep the
planet cooler. On the same point, you could protest against the demolition of the rainforests. This is the same principle, we need the trees to cool our planet and yet they are chopping them down to create roads or homes.Something as si-mp-le as walking instead of taking the car will help reduce pollution. As well as stopping pollution, you are giving yourself exercise, something important for our bodies. So the next time you get into your car, or your motorbike, think - do I have to make this journey by vehicle or can I walk?When you are at home, and your getting a little cold. Put a jumper on and do not adjust the heating. The extra heat produced by our homes also affects the planet. So try wearing an extra layer in winter.If possible, buy your fruit and vegetables from local suppliers. And try to avoid imported goods. The more foreign food that we import the more pollution from aeroplanes and boats it will create.Keeping to the speed limit can also help the environment. The more you speed the more petrol you are going to use, ma-ki-ng the pollution higher. Also, SUVs make about six times their own weight in CO2 each year. A small efficient diesel car covering the same distance not only uses much less fuel; it makes two thirds less.If possible use solar energy, after all it is free; all you need to buy is the equipment. You can get much of your hot water and heating
from the sun and even generate electricity.Reduce, reuse and recycle. Only buy what you need; dont stock the cupboards with things you may or may not use. Reuse whatever you can, like containers and pa-pe-r, and recycle what you cannot reuse. It really is as si-mp-le as that.Finally turning off unused sources of power such as televisions and heaters will help the environment, as well as save you money.If everybody stuck to these rules, we would be doing a great thing by protecting the earth. So please take into consideration what I have said, and try to do your part. After all, it will be our next generation that will feel the effects.温室效应英语演讲稿 [篇2]according to the national academy
of sciences, the earth’s surf-ace temperature has risen by about 1
degree fahrenheit in the past century, with accelerated warming during the past two decades. there is new and stronger evidence that most of the warming over the last 50 years is attributable to human #url#human activities have altered the chemical composition of the atmosphere through the buildup of
greenhouse gases – primarily carbon dioxide, methane, and
nitrous oxide. the heat-trapping property of these gases is undisputed although uncertainties exist about exactly how earth’s climate responds to them.energy from the sun drives the earth’s weather and climate, and heats the earth’s surf-ace; in
turn, the earth radiates energy back into space. atmospheric greenhouse gases, such as water vapor, carbon dioxide, trap some of the outgoing energy, retaining heat somewhat like the glass panels of a greenhouse.without this natural “greenhouse effect,” temperatures would be much lower than they are now,
and life as known today would not be possible. instead, thanks to greenhouse gases, the earth’s average temperature is a more hospitable 60?#url#however, problems may arise when the atmospheric concentration of greenhouse gases increases. once, all climate changes occurred naturally. however, during the industrial revolution, we began altering our climate and environment through changing agricultural and industrial practices.before the industrial revolution, human activity released very few gases into the atmosphere, but now through population growth, fossil fuel burning, and deforestation, we are affecting the mixture of gases in the atmosphere.carbon dioxide is released to the atmosphere when solid waste, fossil fuel and wood products are burned. methane is emitted during the production and transport of coal, natural gas, and oil. methane emissions also result from the decomposition of organic wastes in municipal solid waste landfills, and the raising of livestock. nitrous oxide is emitted during agricultural and industrial
activities, as well as during combustion of solid waste and fossil fuels.rising global temperatures are expected to raise sea level, and change precipitation and other local climate conditions. changing regional climate could alter forests, crop yields, and water supplies. it could also affect human health, animals, and many types of ecosystems and deserts may expand into existing rangelands. unless we act now, our children will inherit a hotter world, dirtier air and water, more severe floods and droughts, and more wildfires.but solutions are in sight. we know where most heat-trapping gases come from: power plants and vehicles. and we know how to curb their emissions: modern technologies and stronger laws. by shifting the perception of global warming from abstract threat to pressing reality, and promoting online activism. by pressing businesses to use less energy and build more efficient products. and by fighting for laws that will speed these advances.
范文四：温室效应英语作文
Ladies and gentlemen,
Good morning, I am Li Hua from Tianjin, China . It’ s my great honor to be here to talk about the global warming problem and ways of dealing with it.
Lately , global warming is becoming a serious problem. Several factors contribute to it. First of all, a lot of greenhouse gas is produced by cars and factories; furthermore, the loss of forests is another cause of global warming.
Global warming will cause some harmful effects. Firstly, some islands will disappear because of the rise of sea level. Secondly, extreme weather results from global warming. When temperature rises, the production of crops will decrease. Besides, some animals and plants will disappear, thus destroying the ecosystem.
So we should protect the earth from greenhouse gases. We should plant trees and reduce the amount of carbon dioxide and other greenhouse gases. Hope our earth can
become better and better. That ’ s all. Thank you.
范文五：英语演讲 环境 温室效应
The Greenhouse Effect
全球气候变暖，是到目前为止对地球和人类生存最为紧迫也最为严重的威胁因素之一。 Global warming is one of the most urgent and the most serious factors now threaten Earth and human's survival
最近，全世界冰川融化速度创下历史最快纪录，从安第斯山脉到北极，冰川消融速度加快。全球气候变暖将直接导致南、北极以及其它冰川融化，同时一些雪山也将随着气温的不断升高而消失。而融化后的冰川，将使海平面快速上升，世界很多美丽的城市终将被海水所淹没。
Recently, The speed of melting glaciers set the record for the fastest, from the Andes to the Arctic glaciers melting faster. Global warming will lead directly to melting of the Antarctic, the Arctic and other glaciers, Meanwhile, some snow-capped mountains will disappear with temperatures rise. The glaciers melted will enable the sea level to rise rapidly, many beautiful cities in the world will eventually be submerged.
100年后 南极只曾留下回忆
100 years later, the Antarctic had left only memories 气温升高，全球变暖，极地冰川融化，企鹅失去家园！
Higher temperatures makes global warming and Melting of polar ice, so the penguins lose their homes!
30年后的夏季，北极可能是一片汪洋
Summer after 30 years, the Arctic may be an ocean. 乞力马扎罗山的“雪帽”将在15年内被摘掉
Kilimanjaro "snow cap" will be taken off in 15 years.
乞力马扎罗山是非洲最高的山脉，它距离赤道仅仅300多公里，顶部却终年满布冰雪。但是，全球变暖导致这座山的终年积雪不断消融，专家预言，“雪帽”将在15年内被摘掉。
Kilimanjaro is the highest mountain in Africa, it is just over 300 km from the equator, but the top covered with snow all year round. However, Global warming leads to the mountain snow continue to melt, experts predict, "snow cap" will be taken off in 15 years.
什么造成了温室效应?
What causes the greenhouse effect?
我认为主要有两个原因：人类排放二氧化碳和砍伐树木
I think there are two main reasons: human emissions of carbon dioxide and cuts down trees.
人类每秒钟释放的二氧化碳已经超过700吨，一年就是230亿吨 Carbon dioxide released by humans every second has more than 700 tons ,a year is 23 billion tons.
亚马孙河流域的农民正在焚烧热带雨林，以开垦更多耕地。每分钟，全世界清除掉的热带森林的面积，相当于200个足球场的大小。依照
现在的这种破坏速度，亚马孙雨林将在400年以内完全消失。
Amazonian farmers are burning rainforest to reclaim more land. Every minute, The world's tropical forests cleared an area equivalent to the size of 200 football fields . According to the current rate of this destruction , The Amazon rainforest will completely disappear within 400 years.
我们依靠在地球上的一切，我们需要生存，所以让我们照顾它。 We rely on the Earth for everything, we need to survive, so let’s take care of it.
