How the Earth’s Greenhouse Effect Works

In addition to carbon dioxide, other important greenhouse gases include water vapor, methane, nitrous oxide, and sulfur hexafluoride. Water vapor, the most abundant of the greenhouse gases, is simply aerosolized water. Scientists are more concerned with the other gases because human activities are largely responsible for their increase, which means we have some ability to control their levels.


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The Relationship between Greenhouse Gases and Global Temperatures

Plants absorb carbon dioxide through their stomata, pores on the leaves. At the same time, plants shed water through their stomata. Plants transpire as water vapor more than 90 percent of the water that they absorb through their roots. Through transpiration, plants change the climate, though not in a straightforward way. On the one hand, water vapor is a greenhouse gas, absorbing as heat the sunlight reflected from Earth.

The greenhouse effect,Figure 2.7.

When a greenhouse gas is very abundant the absorption lines for which it is active are said to �become saturated,� that is, most of the available IR will have been absorbed by the molecules of that gas.

Photosynthesis is important because animals eat food, as it is a source of energy.

Explain the relationship between photosynthesis and ..

The fact that plants absorb carbon dioxide during photosynthesis has an important consequence for the climate. Carbon dioxide correlates with temperature. A high concentration of carbon dioxide correlates with high temperatures, whereas a low concentration of the gas correlates with low temperatures. This relationship holds true, because carbon dioxide is a greenhouse gas: it traps sunlight that reflects from Earth, preventing light, in the form of infrared radiation, from returning to space. In trapping sunlight, carbon dioxide traps heat, thereby increasing the temperature of the atmosphere. Plants lower the concentration of carbon dioxide by absorbing it during photosynthesis. When plants absorb carbon dioxide faster than Earth produces it through vol-canism, the concentration of carbon dioxide diminishes, and temperatures decline. In this context, plants may have contributed to the onset of the Ice Ages by absorbing carbon dioxide.

sun to help warm the planet up= greenhouse effect.

The light-independant reactions of photosynthesis occur in the stroma of the chloroplast and involve the conversion of carbon dioxide and other compounds into glucose. The light-independent reactions can be split into three stages, these are carbon fixation, the reduction reactions and finally the regeneration of ribulose bisphosphate. Collectively these stages are known as the Calvin Cycle.

The absorption bands of different greenhouse gases may or may not overlap with each other.

13/02/2006 · This is called the greenhouse effect

For the right curve, the impact that the major have on the amount of IR that Earth emits to space is clear: carbon dioxide, , and water vapor act together to absorb and re-emit radiation that stays trapped in the lower atmosphere (that is, the outgoing radiation from Earth is much less intense than expected from the temperature one would measure in space due to the effect of greenhouse gases).

No direct influence from changingatmospheric greenhouse gas composition can be observed.

The Greenhouse Effect - Columbia University

Although the United States is not participating in the Kyoto Protocol, the government has taken some steps to reduce greenhouse gas emissions. The Clean Air Act requires the EPA to protect the public from harmful air pollutants. Furthermore, the US Supreme Court has determined that the EPA has the power under the Act to regulate greenhouse gas emissions, which the agency has found to endanger both public health and public welfare.

Solutions to climate change pivot on efforts to reduce greenhouse gas emissions.

what is the relationship between photosynthesis and cellular ..

are readily replaced in nature. Examples include solar, wind, wave, and geothermal power. Because they don’t produce greenhouse gases, they provide a solution to climate change. Furthermore, these resources are , meaning they allow people to maintain a good-quality standard of living without compromising the health and energy needs of future generations.