How can the greenhouse effect be harmful?
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The greenhouse effect in an actual greenhouse takes in the sunlight from outside and keeps it trapped inside the greenhouse. In terms of a global greenhouse, the same thing happens except it's pollution that's being trapped in. All the pollution humans create goes up into the atmosphere and tries to escape but gets deflected back to earth. The sun's heat also gets trapped, slowly giving the world a hotter climate. The more pollution gets trapped in, the more toxic our breathing air becomes. And with more heat trapped in our world, people are more likely to die from over-heating
1028057
global warming and ozone depletion is related. read this....\n\nGlobal Warming Can Increase Ozone Depletion\nScientist's are concerned that continued global warming will accelerate ozone destruction and increase stratospheric ozone depletion. Ozone depletion gets  worse when the stratosphere (where the ozone layer is), becomes colder.  Because global warming traps heat in the troposphere, less heat reaches the stratosphere which will make it colder.  Greenhouse gases act  like a blanket for the troposphere and make the stratosphere colder. In other words, global warming can make ozone depletion much worse right when it is supposed to begin its recovery during the next century.\n\ncheck the following link...it might help you!
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One might suggest reducing carbon dioxide emissions into the atmosphere, but this is only one aspect of the problem.  \n\nWhen carbon dioxide is released, usually from sources of combustion, other chemicals and particulates are also released.  So, curbing the release of carbon dioxide from these sources would also curb the release of these otehr chemicals and particulates.   A recent study has concluded that since we have worked at cleaning up emissions and reducing particulate releases, more sunlight is reaching the surface of the earth and actually _accelerates_ the process of global warming.\n\nHonestly, the best all of us could reasonably do is to be mindful of our energy consumption habits and try to not be wasteful in what we consume and dispose of.  In conjuction with this, look at adding foliage in areas that have been stripped of plant life.  More plants will effectively remove more carbon dioxide from the lower atmosphere.
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Greenhouse effect:  \nIn our atmosphere, we have something called greenhouse gasses.  They exist naturally, and two examples of greenhouse gasses are water vapour and carbon dioxide (there are several more of them).  The greenhouse gasses cause some of the heat that is emitted from the earth to stay within our atmosphere.  If there were no greenhouse gasses in the atmosphere, all the heat from the earth would radiate out into space.  This would mean that the average temperature of earth would be -18 degrees Celsius (0 degrees Farenheit) instead of +15 deg C (60 deg F).  That's a huge difference - I doubt that there would be human life on the planet earth without the greenhouse effect!\n\nGlobal warming:  \nWhen people talk about global warming, they mean that the amount of greenhouse gasses in the atmosphere increases.  Some people say that changes occur naturally, some people say it's because we pollute the air with carbon dioxide etc.  An increase of greenhouse gasses in the atmosphere would mean that less of the heat from the earth would radiate into space, which gives an increase in the average temperature on earth.  Rising temperatures could mean, for instance, that some of the polar ice melts, causing flooding in coastal countries.\n\nSo:\nGreenhouse effect - a good thing\nGlobal warming - possibly bad
646405
Be careful.\n\nThat environment can be dangerous.
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The greenhouse effect is a natural process in which gases in the upper atmosphere trap heat in the planet.  greenhouse gases is carbon dioxide.  Scientists are concerend about this because carbon dioxide is increasing, therefore intensifying the greenhouse effect.  This can lead to global warming, which might melt the ice caps at the poles and submerge coastal cities in up to 100 meters of water.
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The principle behind global warming is the same as the process that warms the interior of a greenhouse. Light from the Sun passes relatively easily down through Earth's atmosphere to the surface. Earth's surface warms and radiates heat in the infra-red part of the electromagnetic spectrum. These frequencies don't pass back up through the atmosphere easily but instead are retained by the atmosphere, thus warming it.
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pollution can cause poisonous run off, and destroy the habitat of water animals, it would also hurt the animals who drink from the water source. It causes smog, its very bad to breath, with all of the pullution building uo it traps heat in earths atmosphere, causing global warming, the planet heats up. theres also alot of other tihngs.
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Greenhouse effects increases the temperature of earth and it will make the poles melt. This would result in cold water entering the oceans and everything will eventually freeze. And then the production of Greenhouse gases will stop so greenhouse effect will exist no longer leaving an Ice Age. But if it continues then finally one day (after 1000 years or more...) earth will become a barren rock.
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The greenhouse effect refers to the fact that Earth is surrounded by an atmosphere which acts like the transparent cover of a greenhouse, allowing sunlight to filter through while trapping heat.\n\nGreenhouse gases are trace gases of mainly water vapor, carbon dioxide, methane, ozone, and nitrous oxide. The Earth's atmosphere largely consists of nitrogen and oxygen, but these gases do not hold heat so they are not greenhouse gases nor contribute to the greenhouse effect.\n\nDuring the day the Earth absorbs heat from the Sun and re-radiates it back out to space. Normally this heat would escape each night and the temperature would fall rapidly. Instead, gaseous molecules absorb the heat given off by the planet, and re-radiate it out in all directions, reabsorbing it, and redistributing it again and again. This keeps the Earth's surface relatively warm and the average temperature comfortable. The greenhouse effect is key in Earth's ability to stay warm and sustain life.\n\nA look to our neighboring planets of Venus and Mars shows what happens when the greenhouse effect - which is akin to a blanket covering the planet - becomes too thick or too thin. Temperatures on Venus soar because of its very thick blanket or atmosphere. The runaway greenhouse effect here is staggering. Mars on the other hand has such a thin blanket (atmosphere) and a weak greenhouse effect, that the planet is very cold. Nearly all of the heat that reaches Mars escapes. Relative distance from the Sun plays a part in the global temperatures of the inner planets, but a greenhouse effect, or lack thereof, is largely responsible for the climates on all these planets.\n\nScientists started using the term "greenhouse effect" in the 1800's. At that time it had no negative connotation. In the mid 1950's the term "greenhouse effect" began to be associated with global warming and also with the negative effects of our industrial age. This enhanced greenhouse effect, as it's sometimes referred to, is the result of burning fossil fuels. This releases additional carbon dioxide into the atmosphere at the rate of about 3 gigatons (3 billion metric tons) per year. Since carbon dioxide (CO2) absorbs heat, we can expect that significant increases in CO2 will tend to raise the global temperature, possibly contributing to global warming. Simply put, if greenhouse gases act like a blanket to keep our planet warm, we are thickening that blanket.\n\nThe natural greenhouse effect on Earth is responsible for life as we know it. We may, however, need to become better stewards of our greenhouse gases in order to preserve life.
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The missing link between air pollution and gobal warming is a concept that you've probably heard of before known as the greenhouse effect.  \n\nThe greenhouse effect is caused by an increase in certain pollutants (known as greenhouse gasses) that are released into the atmosphere.  If enough water vapour, carbon dioxide, methane (and other culprits) are present in the atmosphere, it turns the atmosphere into a "greenhouse" in a way.  Short wavelength infra-red radiation that comes from the sun has enough energy to get through the layer of greenhouse gasses and enter our lower atmosphere, but when these rays contact the Earth, they lose some energy.  \n\nAfter they lose energy, they become longer wavelength infra-red rays, which tend not to have enough energy to break back through the layer of gasses.  These rays are absorbed by the greenhouse gasses, then sent back down to the Earth, further heating the planet.\n\nBasically, if you increase the amount of greenhouse gasses in the atmosphere, you let the same amount of heat in, but not as much heat gets out.  The overall temperature of the Earth rises, polar ice caps melt.  Bad stuff happens.\n\nThe best example of this is Venus, which has a thick layer of carbon dioxide (among other things) in its atmosphere.  Thus, the mean temperature of Venus is around 737K, far hotter than Mercury at 440K, even though Mercury is closer to the sun.  \n\nHope this helps.
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Global warming,green house effects,thinning layer of the ozone
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Effects of deforestation.\n\nthis can be a local problem with global consequences.\n\ncan be biology and chemsitry (maybe physics as well, heat flows etc.)
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We don't need to counter the greenhouse effect. Global warming is caused by the Sun, not by anything that we are doing. and we cannot prevent it. We need to make realistic plans to move our cities inland, not to waste time trying to prevent it.\n\nAttributing global warming to human causes is political hype, exploited by unscrupulous people who want to gain fame without having to do anything to earn it and influence without being responsible to anybody in their use of it.\n\n13 NOV 06, 0323 hrs, GMT.
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Because it traps the heat from the sun and earth from escaping back into space, thereby making the planet warmer.  It's called the greenhouse affect.  That also causes more clouds and rain and blocking the suns heat making it cooler.....\n\nThere is still much debate as to how much is really caused by us, and how much is natural no matter what.  Our Earth has been everything from a molten planet to a glacier planet in it's 5 billion years, and we have only been recording temperature for about 150 years.  \n\nNobody can say anything for sure, too many variables, all we do know is it has been getting a little warmer the last few decades.  Anyone who says they know for sure why is not being honest with you or themselves.  It's a political issue now, and you know what that means, lies, lies lies.
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Greenhouse gas emissions -> Leads to global warming.  Which destroys many parts of the the world's eco-systems already, it will eventually impact humans soon too.
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--Humans cut down forests and woodlands and plough the soil for agricultural purposes to produce more food. This decreases photosynthesis and there is less utilization of CO2 and so the atmospheric CO2 increases in concentration, hence disturbing the carbon cycle and leading to global warming.\n--Due to the increasing human population, more vehicles are now in use and the car exhaust release more of pollutant gases including CO2, and so the concentration of CO2 in air increases.\n--Excessive combustion of fossil fuels also release CO2 in the atmosphere and increase its concentration. This leads to global warming which has the following effects: (1) Melting of polar ice caps due to increased temperature, resulting in floods. (2) Evaporation of water from water bodies, altering the rainfall pattern and climatic conditions. (3) More evaporation of water from the soil, leading to drought and famine.\nHowever, and increase in temperature increases the rate of photosynthesis. Hence more of 02 is evolved and the cycle can be brought back to normal.