This website uses cookies to ensure you have the best experience. Learn more

Greenhouse Effect Essay

1948 words - 8 pages

Greenhouse effect
From Wikipedia, the free encyclopedia
Jump to: navigation, search

A representation of the exchanges of energy between the source (the Sun), the Earth's surface, the Earth's atmosphere, and the ultimate sink outer space. The ability of the atmosphere to capture and recycle energy emitted by the Earth surface is the defining characteristic of the greenhouse effect.

Another diagram of the greenhouse effect
The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in all directions. Since part of this re-radiation is back towards the surface and the lower atmosphere, it ...view middle of the document...

[9] The mechanism that produces this difference between the actual surface temperature and the effective temperature is due to the atmosphere and is known as the greenhouse effect.[10]
Earth’s natural greenhouse effect makes life as we know it possible. However, human activities, primarily the burning of fossil fuels and clearing of forests, have intensified the natural greenhouse effect, causing global warming.[11]
Contents
* 1 History
* 2 Mechanism
* 3 Greenhouse gases
* 4 Role in climate change
* 5 Real greenhouses
* 6 Bodies other than Earth
* 7 See also
* 8 References
* 9 Further reading
* 10 External links
History
The existence of the greenhouse effect was argued for by Joseph Fourier in 1824. The argument and the evidence was further strengthened by Claude Pouillet in 1827 and 1838, and reasoned from experimental observations by John Tyndall in 1859, and more fully quantified by Svante Arrhenius in 1896.[12][13]
In 1917 Alexander Graham Bell wrote “[The unchecked burning of fossil fuels] would have a sort of greenhouse effect”, and “The net result is the greenhouse becomes a sort of hot-house.”[14][15] Bell went on to also advocate for the use of alternate energy sources, such as solar energy.[16]
Mechanism
The Earth receives energy from the Sun in the form UV, visible, and near IR radiation, most of which passes through the atmosphere without being absorbed. Of the total amount of energy available at the top of the atmosphere (TOA), about 50% is absorbed at the Earth's surface. Because it is warm, the surface radiates far IR thermal radiation that consists of wavelengths that are predominantly much longer than the wavelengths that were absorbed (the overlap between the incident solar spectrum and the terrestrial thermal spectrum is small enough to be neglected for most purposes). Most of this thermal radiation is absorbed by the atmosphere and re-radiated both upwards and downwards; that radiated downwards is absorbed by the Earth's surface. This trapping of long-wavelength thermal radiation leads to a higher equilibrium temperature than if the atmosphere were absent.
This highly simplified picture of the basic mechanism needs to be qualified in a number of ways, none of which affect the fundamental process.

The solar radiation spectrum for direct light at both the top of the Earth's atmosphere and at sea level

Synthetic stick absorption spectrum of a simple gas mixture corresponding to the Earth's atmosphere composition based on HITRAN data [17] created using Hitran on the Web system.[18] Green color - water vapor, red - carbon dioxide, WN - wavenumber (caution: lower wavelengths on the right, higher on the left).
* The incoming radiation from the Sun is mostly in the form of visible light and nearby wavelengths, largely in the range 0.2–4 μm, corresponding to the Sun's radiative temperature of 6,000 K.[19] Almost half the radiation is in the form of "visible" light, which our...

Other Papers Like Greenhouse Effect

Lesson Essay

735 words - 3 pages understand texts * Talk about climate and environment * Ask and answer questions * Take part in role-plays * Write short guided and semi-guided sentences and passages Lesson 1 : The greenhouse effect Key words : Trap planet roof greenhouse global warming release A Nowshin and Sajid read about greenhouse effect in the booklet. Read the passage to know what Nowshin and Sajid have learnt so far

Editorial Blog Essay

678 words - 3 pages own citations and references since WritePoint capability in this area is limited. Thank you for using WritePoint. The Greenhouse Effect on Global Warming By: Crystol Woodfin Pollution in our [Use "we," "us," or "our" to mean yourself and coauthors, not general humanity (or yourself and the reader)] world is leading to increased Global Warming.   This Global Warming is a problem that if it doesn't effect us, it will effect [Check

The Movement

452 words - 2 pages various problems that we as humans have inflicted on the earth. Because of the fact that we are contributing to the global warming through our activities of burning of fossil fuels, industrial plants, farming and deforestation activities are only phases that the earth is experiencing, besides the greenhouse effect. The greenhouse effect which is water vapors, carbon dioxide and methane which our all gases and which water vapor accounts

Green House Effect

572 words - 3 pages Greenhouse effect- is a process by which radiative energy leaving a planetary surface is absorbed by some atmospheric gases, called greenhouse gases. They transfer this energy to other components of the atmosphere, and it is re-radiated in all directions, including back down towards the surface. This transfers energy to the surface and lower atmosphere, so the temperature there is higher than it would be if direct heating by solar radiation were

Metr 112 Hw2

618 words - 3 pages 1. Describe what a greenhouse gas is and give examples of the common greenhouse gases. Why are greenhouse gases important to surface energy balance? A greenhouse gas is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect Examples of common greenhouse gases are water vapor, carbon dioxide, methane, nitrous oxide, Chlorofluorocarbons, and

Global Warming

1003 words - 5 pages The global warming hypothesis originated in 1896 when Svante Arrhenius, a Swedish chemist, developed the theory that carbon dioxide emissions from the burning of fossil fuels would cause global temperatures to rise by trapping excess heat in the earth’s atmosphere. Arrhenius understood that the earth’s climate is heated by a process known as the greenhouse effect. While close to half the solar radiation reaching the earth’s surface is reflected

Global Warming: Fact or Fiction

575 words - 3 pages Professional Business Writing April 30, 2011   Global Warming: Fact or Fiction I. Are humans to blame for global warming? a. Human causes 1. Greenhouse effect Global warming is not something that just began. There have been several periods throughout history where surface temperatures have been higher or lower. According to Philip’s Encyclopedia (2008), “The earth is currently in the middle of a warm period that began 10,000 years

Global Warming

2094 words - 9 pages gases. The problem begins when the concentration of greenhouse gases in the atmosphere were artificially raised by humankind at an ever-increasing rate since the past 250 years. As of 2004, over 8 billion tons of carbon dioxide was pumped out per year; natural carbon sinks such as forests and the ocean absorbed some of this, while the rest accumulated in the atmosphere. The greenhouse effect is a process by which thermal radiation from a

Causes of Global Warming and Its Present and Future Impacts on South-West Western Australia

1458 words - 6 pages cycles of The Greenhouse Effect. The Greenhouse Effect has made the earth an environment for supporting life through the cycling of energy from the sun via short-wave radiation, which heats the earths surface, then is released into the atmopshere as long-wave radiation. This cycle is made possible by the prescence of Greenhouse gases, which redside in the earths atmopshere, and absorb most of the long-wave radiation given off by the earth, with the

Global Warming

2392 words - 10 pages Contents Page No. 1.0 Introduction 02 1.1 Definition of Global Warming 03 1.2 Causes of Global Warming 03 1.3 Effects of global warming 04 2.0 Finding and Analyzing 06 2.1 How Do Humans Contribute to the Greenhouse Effect? 06 2.2 Solutions for Global Warming Prevention 06 2.3 Our Role in Global Warming 07 3.0 Conclusion 08 Reference 09 1.0

Causes of Global Warming

977 words - 4 pages overpopulation and greenhouse gases are an issue linked to the deforestation and overpopulation. Greenhouse gases have been necessary on the life on earth. Without the greenhouse gases in the atmosphere, the temperature would be under the freezing temperature of water. Atmosphere is composed of water vapor which causes 36-70% of the greenhouse effect, carbon dioxide which causes 9-26%, methane which causes 4-9% and ozone which causes 3-7%. But

Related Essays

The Greenhouse Effect Essay

1858 words - 8 pages The Greenhouse Effect Introduction Greenhouse effect refers to an atmospheric process by which short wavelenghts of the visible light from the sun pass through the atmosphere where they are absorbed or trapped. However, part of light emitted from the sun in form of long wave is re-radiated from heated objects on the earth’s surface in to the atmosphere. Presence of greenhouse gases in the atmosphere does not allow the radiations to pass

What Is The Greenhouse Effect Essay

1348 words - 6 pages What is the Greenhouse Effect? How does Earth manage to stay warm and sustain life instead of the other planets in our solar system that are just cold and desolate? Well, this phenomenon is referred to as the Greenhouse Effect. Although the greenhouse effect was named because of its similarity to how and actual greenhouse works, they are different. The way a greenhouse works is that the sun’s rays pass through the glass and then the rays

Greenhouse Effect And Its Implication On Global Warming

1273 words - 6 pages Greenhouse Effect and its Implication on Global Warming Greenhouse effect refers to an atmospheric process by which short wavelenghts of the visible light from the sun pass through the atmosphere where they are absorbed or trapped. However, part of light emitted from the sun in form of longwave is re-radiated from heated obects on the earth’s surface in to the atmosphere. Presence of greenhouse gases in the atmosphere does not allow the

Green House Gases Essay

1361 words - 6 pages RA greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The primary greenhouse gases in the Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone. In the Solar System, the atmospheres of Venus, Mars, and Titan also contain gases that cause greenhouse effects