当你过着无忧无虑的生活时，可曾想到我们周围的环境正一步步恶化?当你随手丢下纸屑时，可曾想到我们已陷入垃圾围城的危机中?在人们不断盲目追求工业生产、社会进步的时候，那蔚蓝的天空，那清澈的河水，那清新的空气，已离我们越来越远。地球越来越拥挤，随之而来的是环境污染的日渐严重，资源的日渐匮乏。人类的智慧创造了经济的奇迹，无知与贪婪却留下了可怕的恶果。所有的一切无时无刻不在提醒着我们：环境保护迫在眉睫!

1972年6月5日，人类环境会议在瑞典首都斯德哥尔摩召开，会议通过了《人类环境宣言》;同年10月，第27届联合国大会通过决议，将以后每年的6月5日定为世界环境日。现在我们又迎来了世界环境日。为了保护我们赖以生存的共同家园——地球，我们以虔诚的声音呼唤生命的绿色。人人行动起来，保护绿色家园。身为学生的我们应从自己做起，从身边做起，保护环境，爱护我们共同的家园。我们应当拒绝使用一次性物品，尽量使物品可以二次使用;少用塑料袋，减少白色垃圾的产生;不乱扔废电池，防止对水源和土壤造成污染??相信我们今天播下一粒绿色种子，明天将收获一片蓝天绿地!为了地球的明天，为了人类的未来，让我们行动起来吧!行动起来，从你我开始;行动起来，从现在开始。让我们共同走向绿色明天!

全球变暖演讲稿篇2

global warming

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 1800’s 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 century’s 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 simpler than you may think. you don’t have to go miles away from home to protest, or spend masses of money. if you try to follow the few simple 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 simple 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, making the pollution higher. also, suv’s 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; don’t stock the cupboards with things you may or may not use. reuse whatever you can, like containers and paper, and recycle what you cannot reuse. it really is as simple 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.

全球变暖演讲稿篇3

亲爱的老师们、同学们：

大家好，我是来自高一(11)班的陶子寅，今天我将讨论的主题是环保。上周四是我国第37个植树节，它就是为环保而设立的节日。在我看来，环保，就是环与保，环，即循环节约;保，即保持改善。环对付的是浪费，保处理的是污染，这两项，我国的问题仍十分严重。

比如说，我国每年纸的生产量和消耗量都占全球的1/4，每年消耗约0.4亿吨纸，相当于8亿棵树，每棵树的树龄约为20年，在这20年里，因形成层细胞分裂活动快慢的周期变化，树才形成了20个年轮，最终变成50千克的纸。此外，水、电、化石燃料的消耗也很惊人。

最近的一部纪录片《穹顶之下》一定有许多人看了，也肯定有了自己的反思。那如今南京的雾霾怎么样了呢，晚上大家可以出楼眺望一下天际，泛着淡淡的红，，当然，那不是晚霞，而是霾在作怪，短波长蓝紫光能更易被大气层散射，而在晴朗天气下一般会散射到外太空中的长波红光，会因霾的存在大部分被反射回地面，因此天空呈现红色。而雾霾产生的主要原因还是化石燃料的过度燃烧。除此之外，还有许多环境问题，如垃圾过多、气候变暖、水土流失等等。

对于这些问题，我们可以做些什么呢?其实我们可以做的有很多，以下是我自己的一些建议：

1.节约用纸，每学期末，将不再用的本子的剩余空白页撕下当草稿纸，套书的书皮如不破烂，也可用于下学期的新书。

2.废物利用，平时使用后的纸包装，报刊，塑料瓶等物都堆放在一处，连同无用的课本试卷，一起送去废品回收站。

3.春节期间减少烟花爆竹的燃放，外出时劝父母尽量不开车，短距离可以步行或骑车，长距离可以选择公共交通。

4.积极参与环保活动，爱护花草树木，有机会的话自己种几棵树。

相信只要每一个人都能将环保记在心里，落实在行动上，我们的环境会更加美好。从今天开始，大家共同努力。

全球变暖演讲稿篇4

earth’s temperature begins with the sun. roughly 30 percent of incoming sunlight is reflected back into space by bright surfaces like clouds and ice. of the remaining 70 percent, most is absorbed by the land and ocean, and the rest is absorbed by the atmosphere. the absorbed solar energy heats our planet.

as the rocks, the air, and the seas warm, they radiate “heat” energy (thermal infrared radiation). from the surface, this energy travels into the atmosphere where much of it is absorbed by water vapor and long-lived greenhouse gases such as carbon dioxide and methane.

when they absorb the energy radiating from earth’s surface, microscopic water or greenhouse gas molecules turn into tiny heaters— like the bricks in a fireplace, they radiate heat even after the fire goes out. they radiate in all directions. the energy that radiates back toward earth heats both the lower atmosphere and the surface, enhancing the heating they get from direct sunlight.

this absorption and radiation of heat by the atmosphere—the natural greenhouse effect—is beneficial for life on earth. if there were no greenhouse effect, the earth’s average surface temperature would be a very chilly -18°c (0°f) instead of the comfortable 15°c (59°f) that it is today.

全球变暖演讲稿篇5

people around the world may feel that the climate has been getting steadily warmer and warmer in recent years. places which used to be abundant in snowfall have frequently experienced snowfree无雪的 winters. drought lasts longer in some dry areas. people find that without air conditioners they could hardly work or fall asleep on hotter summer daysg.

the side effects of global warming are alarmins. a warmer global climate melts the ice caps, raising sea levels. what is more, it disturbs weather patterns, causing droughts, severe storms, hurricanes 飓风. people suffer a lot from disasters relevant to global warming.

to stop global warming we should make immediate and continual efforts. we hope the situation will soon change. global warming catches and holds our concern, for it affects us and will affect our later generations. we cannot wait any longer. do it. do it right. do it right now.

全球变暖演讲稿5篇相关文章：

全球变暖演讲稿5篇