Energy radiated by the earth and absorbed by the atmosphere is most important role in the greenhous efect?T/F?
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yes - sunlight penetrates through the atmosphere and in converted to infrared radiation, which is trapped by gases in the atmosphere such as CO2, CH4 and N2O.
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first of all, u should know that the quality f air is fast deterioting. with the increase in human populatin and the decrease in tree population, the % of CO2 will increase also. since we still using hidrocarbon for cars, power plant to generate electricity, etc the air is filled with CO2. with the increase in CO2, ur earth get warmer and ice is south n North pole will melt (green house effect). remember that the ice reflect sunlight to space, meaning our earth will even get warmer. other pollutants will not affect too much to our earth.
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The heat is radiated from the core of the Earth - from the heat buildup from when the Earth was forming - the conversion of gravitational energy to heat.  It is cooler now than when the planets were forming, but it's still pretty dang hot at the core, and that's the heat that warms up the asthenosphere.
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Energy. That is the concern over the greenhouse effect, that energy will be trapped in the atmosphere raising temperatures. The average surface temperature of the earth would be -18 degrees zero without a greenhouse effect and 72 degrees zero without a biosphere which counteracts the Greenhouse effect.
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The sun is the earth's largest source of reliable energy.  Plants have green leaves that absorb and trap sunlight and convert that light into chemical energy; namely starches that other animals eat.\n\nThe sunlight is converted to starches by chlorophyll, a green substance in the leaves of green plants.  Carbon dioxide gas molecules (CO2) in our atmosphere is combined into sugar; sugar is combined into starches.  Wood is a form of starch called cellulose.\n\nSecondly, water is "split" (chopped into three pieces) releasing oxygen (gas) by photosynthesis.  So plants provide us oxygen by "splitting" water; and plants provide us sugar by "fixing" carbon dioxide.  We eat the plants or we animals that eat the plants.  This is how we get our energy.\n\nSo, cows are animals that eat grass; in so doing they gather sugar energy and live.  We eat cows, for example.  Or, certain insects eat plants; some fish eat those insects and then we eat the fish...so on and so forth.
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Although the term "energy budget" is widely used, the flow of energy in and out of the Earth is actually measured in units of power (watts), not units of energy (joules). Therefore, "power budget" would be a more accurate term.\n\nWell, ideally, the Earth's Energy Budget should have been at equillibrium; but due to the effect of Greenhouse gases, deforestation, Ozone leakage, etc. the equilibrium has already been disbalanced and the net Earth's energy content is increasing steadily. Added to this grave problem are the Solar Storms, which are increasing in number and intensity; increased amount of meteor shower; increase in the sun's radiation, etc. are calling for the end of life in our Solar system.
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energy from the cosmos.\nall energy eminated from that first creation\nthe "in the beginning" creation or for moderns the "big bang "energy.\nIt is the energy still eminating from our cosmos
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The air is the gaseous compounds and elements that make up the Earth's atmosphere.\n\nThe essence of the air is that it is made up of mostly Nitrogen (78%), and also a fair amount of Oxygen (21%), plus Argon and a myriad of other gases including water vapour, ozone and carbon dioxide.\n\nOxygen is probably the most important element for humans, as our metabolism has evolved to utilize oxygen as the ultimate electron receptor in the biochemical pathway that provides the energy to run the metabolic processes that keep our body, and most importantly our energy hungry brain, operating.\n\nWithout oxygen, our body is forced to switch to the 'back-up generator' of anaerobic respiration, and that pathway simply doesn't provide enough energy to keep our body operating for very long.  It works fine for some bacteria, but we need a bit more oomph in our catabolism.\n\nThe atmosphere also shields us from some of the harmful effects of the radiation of our sun, such as ultraviolet radiation, and makes temperature and climate more stable, holding heat when the sun isn't shining on us, and taking longer to heat up when it is shining.  Thus it also makes our lives more comfortable.\n\nPlus if we didn't have the air, it wouldn't be there to refract light and make the sky blue, or form regions with big fluffy poofs of water vapour to scud lazily across the blue sky on a lazy summer afternoon, or provide a medium in which butterflies can dance prettily in summer air.\n\nSo I have no idea what 'quimic composition' is, but that's the essence of air.
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Earth's Atmosphere\nThe Earth is surrounded by a blanket of air, which we call the atmosphere. It reaches over 560 kilometers (348 miles) from the surface of the Earth, so we are only able to see what occurs fairly close to the ground. Early attempts at studying the nature of the atmosphere used clues from the weather, the beautiful multi-colored sunsets and sunrises, and the twinkling of stars. With the use of sensitive instruments from space, we are able to get a better view of the functioning of our atmosphere.\n\nLife on Earth is supported by the atmosphere, solar energy, and our planet's magnetic fields. The atmosphere absorbs the energy from the Sun, recycles water and other chemicals, and works with the electrical and magnetic forces to provide a moderate climate. The atmosphere also protects us from high-energy radiation and the frigid vacuum of space.\n\nThe envelope of gas surrounding the Earth changes from the ground up. Four distinct layers have been identified using thermal characteristics (temperature changes), chemical composition, movement, and density\n\nComposition of the Atmosphere\nThe atmosphere is primarily composed of Nitrogen (N2, 78%), Oxygen (O2, 21%), and Argon (Ar, 1%). A myriad of other very influential components are also present which include the water (H2O, 0 - 7%), "greenhouse" gases or Ozone (O, 0 - 0.01%), Carbon Dioxide (CO2, 0.01-0.1%),\n\n\nLayers of atmosphere\n\nThe atmosphere is divided into five layers. It is thickest near the surface and thins out with height until it eventually merges with space. \n\n1) The troposphere is the first layer above the surface and contains half of the Earth's atmosphere. \nThe troposphere is where all weather takes place; it is the region of rising and falling packets of air. The air pressure at the top of the troposphere is only 10% of that at sea level (0.1 atmospheres). There is a thin buffer zone between the troposphere and the next layer called the tropopause\n\n2)The Stratosphere and Ozone Layer\nAbove the troposphere is the stratosphere, where air flow is mostly horizontal. The thin ozone layer in the upper stratosphere has a high concentration of ozone, a particularly reactive form of oxygen. This layer is primarily responsible for absorbing the ultraviolet radiation from the Sun. The formation of this layer is a delicate matter, since only when oxygen is produced in the atmosphere can an ozone layer form and prevent an intense flux of ultraviolet radiation from reaching the surface, where it is quite hazardous to the evolution of life. There is considerable recent concern that manmade flourocarbon compounds may be depleting the ozone layer, with dire future consequences for life on the Earth\nMany jet aircrafts fly in the stratosphere because it is very stable. \n\n3)Mesosphere\nThe mesosphere starts just above the stratosphere and extends to 85 kilometers (53 miles) high. In this region, the temperatures again fall as low as -93 degrees Celsius as you increase in altitude. The chemicals are in an excited state, as they absorb energy from the Sun. The mesopause separates the mesophere from the thermosphere.\n\nThe regions of the stratosphere and the mesosphere, along with the stratopause and mesopause, are called the middle atmosphere by scientists. This area has been closely studied on the ATLAS Spacelab mission series. Meteors or rock fragments burn up in the mesosphere.\n\n4)Thermosphere\nThe thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high. The temperatures go up as you increase in altitude due to the Sun's energy. Temperatures in this region can go as high as 1,727 degrees Celsius. Chemical reactions occur much faster here than on the surface of the Earth. This layer is known as the upper atmosphere.\n\nThe upper and lower layers of the thermosphere will be studied more closely during the Tethered Satellite Mission (TSS-1R).\n\n\n5) exosphere\nThe exosphere starts at the t
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The greenhouse effect, first discovered by Joseph Fourier in 1824, and first investigated quantitatively by Svante Arrhenius in 1896, is the process by which an atmosphere warms a planet.\n\nMars, Venus and other celestial bodies with atmospheres (such as Titan) have greenhouse effects, but for simplicity the rest of this article will refer to the case of Earth.\n\nIn common parlance, the term greenhouse effect may be used to refer either to the natural greenhouse effect, which is the greenhouse effect which occurs naturally on Earth, or to the enhanced (anthropogenic) greenhouse effect, which results from human activities (see also global warming). A green building global warming map is now publically available to track human warming causes. The former is accepted by all; the latter is accepted by a large majority of scientists, although there is some dispute (see scientific opinion on climate change and attribution of recent climate change).\nThe Earth receives an enormous amount of solar radiation. Just above the atmosphere, the solar power flux density averages about 1366 watts per square meter, or 1.740×1017 W over the entire Earth. This figure greatly exceeds the power generated by human activities.\n\nThe solar power hitting Earth is balanced over time by a roughly equal amount of power radiating from the Earth (as the amount of energy from the Sun that is stored is small). Almost all radiation leaving the Earth takes two forms: reflected solar radiation and thermal black body radiation.\n\n \nSolar radiation at top of atmosphere and at Earth's surface.Reflected solar radiation accounts for 30% of the Earth's total radiation: on average, 6% of the incoming solar radiation is reflected by the atmosphere, 20% is reflected by clouds, and 4% is reflected by the surface.\n\nThe remaining 70% of the incoming solar radiation is absorbed: 16% by the atmosphere (including the almost complete absorption of shortwave ultraviolet over most areas by the stratospheric ozone layer); 3% by clouds; and 51% by the land and oceans. This absorbed energy heats the atmosphere, oceans, land and powers life on the planet.\n\nLike the Sun, the Earth is a thermal blackbody radiator. So because the Earth's surface is much cooler than the Sun (287 K vs 5780 K), Wien's displacement law dictates that Earth must radiate its thermal energy at much longer wavelengths than the Sun. While the Sun's radiation peaks at a visible wavelength of 500 nanometers, Earth's radiation peak is in the longwave (far) infrared at about 10 micrometres.\n\n \nAtmospheric absorption of various wavelengths of electromagnetic radiation (measured along sea level).The Earth's atmosphere is largely transparent at visible and near-infrared wavelengths, but not at 10 micrometres. Only about 6% of the Earth's total radiation to space is direct thermal radiation from the surface. The atmosphere absorbs 71% of the surface thermal radiation before it can escape. The atmosphere itself behaves as a blackbody radiator in the far infrared, so it re-radiates this energy.\n\nThe Earth's atmosphere and clouds therefore account for 91.4% of its longwave infrared radiation and 64% of Earth's total emissions at all wavelengths. The atmosphere and clouds get this energy from the solar energy they directly absorb; thermal radiation from the surface; and from heat brought up by convection and the condensation of water vapor.\n\nBecause the atmosphere is such a good absorber of longwave infrared, it effectively forms a one-way blanket over Earth's surface. Visible and near-visible radiation from the Sun easily gets through, but thermal radiation from the surface can't easily get back out. In response, Earth's surface warms up. The power of the surface radiation increases by the Stefan-Boltzmann law until it (over time) compensates for the atmospheric absorption.\n\nThe surface of the Earth is in constant flux with daily, yearly, and ages long c
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Global warming occurs naturally and is essential for life on Earth, but today, 99.5% of green house gases are caused by human energy industries, transportation, and commercial use.
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All living things emit energy - mostly in the form of heat.\nAll living things produce energy and even the ones most efficient at using the energy the produce lose some to the surronding environment.
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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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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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Methane allows solar radiation of short wavelengths in, but not longer wavelength heat.  The increased levels of methane have caused more heat to be trapped within Earth's atmosphere, thus increasing the global temperature.
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None.\n\nCalories are a measure of the heat content of objects.  If you are referring to the amount of heat radiated by the earth, it would be stated in some unit appropriate to the measure of radiant energy, such as watts or newtons per second.\n\nYou may be able to find an answer by visiting the library or using the internet.
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Insolation is the incoming solar radiation that reaches a planet and its atmosphere or, by extension, any object exposed to solar rays, such as watts per square meter of Sun-facing cross section, across the entire electromagnetic spectrum; most of that power is in the visible light portion of the spectrum. On Earth's surface, the Sun's rays are attenuated by the atmosphere. The midday insolation on clear days in temperate latitudes may be estimated as 1000 watts per square meter directly facing the Sun. The actual figure varies with the Sun angle at different times of year (because the sunlight must travel through varying distances of air), and with atmospheric haze and cloud cover. Long-term time-averaged insolation in sunny locations is closer to 250 watts per square meter, taking into account the lower insolation in early morning and evening, and the presence of night.\n\nThe insolation into a fixed surface (such as a window or roof) depends on the projected area of the surface perpendicular to the incoming sunlight, not directly on the area of the surface. This is the reason that the polar regions are much colder than equatorial regions on Earth: on an annual average the poles receive less insolation than does the equator, because the Earth's surface at the poles never faces the Sun directly. The projection effect can also be used in architecture to design buildings that are cool in summer and warm in winter, by providing large vertical windows on the equator-facing side of the building (the south face, in the northern hemisphere): this maximizes insolation in the winter months when the Sun is low in the sky, and minimizes it in the summer when the noonday Sun is high in the sky. (The Sun's north/south path through the sky spans over 45 degrees through the year).