WHAT IS GREEN HOUSE EFFECT?
The so-called greenhouse effect of the earth's atmosphere is vital: a layer of air enveloping the planet lets about 70 percent of incoming sun rays pass through, but retains a large part of the heat reflected by the Earth's surface.
The greenhouse effect is an increase in the average temperature of the Earth. It happens because certain gases absorb infrared heat that would normally be radiated into space. Infrared light is what you feel as heat from heat lamps used in restaurants to keep French fries hot. It also causes the heat you feel from ordinary light bulbs. Since carbon dioxide absorbs this heat, the more carbon dioxide there is in the atmosphere, the warmer the air will be. If the air gets too hot, the balance of life will be disrupted.Species of plants and animals will die. The food chain could be upset. This would cause many serious problems worldwide.
This effect makes sure that the planet always has a comfortable median temperature of 15 degrees Celsius. Without the greenhouse effect we would be freezing at minus 18 degrees.
The greenhouse effect is caused by certain traces of gases in the atmosphere that let short-wave radiation, such as sunlight pass through easily, but holds back long-wave heat radiation.
Carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O, known as laughing gas) are among the main greenhouse gases after steam.
Since the beginning of industrialization, these gases, especially CO2, have been entering the atmosphere in large amounts through the burning of fossil fuels like coal, oil and gas.
Agriculture is another source of greenhouse gases.
With more intensive farming practices, deforestation, increasing numbers of cars on our roads, rising industrial production in developed countries and the industrialization of developing nations, the situation is getting worse by the day.
As humans produce more greenhouse gases, the atmosphere absorbs more heat, causing global warming and changing the Earth's climate.
Some visible effects of global warming are melting glaciers, rising sea levels, and worsening weather conditions such as heat waves and stronger storms.
CO2, methane and nitrous oxide make up nearly 90 percent of man- made greenhouse gases, says the United Nations World Meteorological Organization (WMO). With the emission of those gases, humans increase the natural greenhouse effect.
Compared to measurements taken around 1750 - before industrialization - figures at the end of 2005 had increased as follows: Carbon dioxide up 35.4 per cent, nitrous oxide up by 18.2 per cent and methane up by 154.7 per cent
The average CO2 concentration in 2005 was 379.1 ppm (parts per million particles of air). The average for methane was 1.78 ppm, for nitrous oxide 0.32 ppm. At the beginning of industrialization, the CO2 concentration stood at 280 ppm.
Greenhouse Effect + Intercontinental Pollution => More frequent droughts in India
Polluted "atmospheric brown clouds" (ABC) traveling from one continent to another interact with oceanic warming and increase variability in the monsoon over the Indian subcontinent, according to recent studies sketched in Science Daily. The result may be an increased frequency of drought conditions affecting 2 billion people.
The recent studies from various sources including the Scripps Institute of Oceanography. Field observations used in the study were obtained as part of the Indian Ocean Experiment (INDOEX), a $25 million international campaign funded by the NSF, the U.S. Dept. of Energy and NOAA.
Scripps scientist V. Ram Nathan is quoted in a Science Daily article: "About five to 10 years ago we used to think about pollution as an urban problem. Now we have discovered, with new observations including satellite data, that these pollution clouds travel quickly and can cover an entire ocean. Scientists have shown that in a matter of five days pollution traveled from China to the United States, and in a matter of three to four days it can travel from the U.S. to Europe."
"The greenhouse gases are pushing in one direction, warming the ocean and trying to make more rain, and the aerosols are pushing in another direction for cooler oceans and less rain. The net effect is to drive the monsoon rain system away from South Asia into the equatorial and southern oceans," said Ram Nathan. "Some years the aerosols might win and in some years the greenhouse effect may win. So we are concerned that in coming decades the variability between the two will become large and it will be difficult to cope with rapid changes from year to year."
The so-called greenhouse effect of the earth's atmosphere is vital: a layer of air enveloping the planet lets about 70 percent of incoming sun rays pass through, but retains a large part of the heat reflected by the Earth's surface.
The greenhouse effect is an increase in the average temperature of the Earth. It happens because certain gases absorb infrared heat that would normally be radiated into space. Infrared light is what you feel as heat from heat lamps used in restaurants to keep French fries hot. It also causes the heat you feel from ordinary light bulbs. Since carbon dioxide absorbs this heat, the more carbon dioxide there is in the atmosphere, the warmer the air will be. If the air gets too hot, the balance of life will be disrupted.Species of plants and animals will die. The food chain could be upset. This would cause many serious problems worldwide.
This effect makes sure that the planet always has a comfortable median temperature of 15 degrees Celsius. Without the greenhouse effect we would be freezing at minus 18 degrees.
The greenhouse effect is caused by certain traces of gases in the atmosphere that let short-wave radiation, such as sunlight pass through easily, but holds back long-wave heat radiation.
Carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O, known as laughing gas) are among the main greenhouse gases after steam.
Since the beginning of industrialization, these gases, especially CO2, have been entering the atmosphere in large amounts through the burning of fossil fuels like coal, oil and gas.
Agriculture is another source of greenhouse gases.
With more intensive farming practices, deforestation, increasing numbers of cars on our roads, rising industrial production in developed countries and the industrialization of developing nations, the situation is getting worse by the day.
As humans produce more greenhouse gases, the atmosphere absorbs more heat, causing global warming and changing the Earth's climate.
Some visible effects of global warming are melting glaciers, rising sea levels, and worsening weather conditions such as heat waves and stronger storms.
CO2, methane and nitrous oxide make up nearly 90 percent of man- made greenhouse gases, says the United Nations World Meteorological Organization (WMO). With the emission of those gases, humans increase the natural greenhouse effect.
Compared to measurements taken around 1750 - before industrialization - figures at the end of 2005 had increased as follows: Carbon dioxide up 35.4 per cent, nitrous oxide up by 18.2 per cent and methane up by 154.7 per cent
The average CO2 concentration in 2005 was 379.1 ppm (parts per million particles of air). The average for methane was 1.78 ppm, for nitrous oxide 0.32 ppm. At the beginning of industrialization, the CO2 concentration stood at 280 ppm.
Greenhouse Effect + Intercontinental Pollution => More frequent droughts in India
Polluted "atmospheric brown clouds" (ABC) traveling from one continent to another interact with oceanic warming and increase variability in the monsoon over the Indian subcontinent, according to recent studies sketched in Science Daily. The result may be an increased frequency of drought conditions affecting 2 billion people.
The recent studies from various sources including the Scripps Institute of Oceanography. Field observations used in the study were obtained as part of the Indian Ocean Experiment (INDOEX), a $25 million international campaign funded by the NSF, the U.S. Dept. of Energy and NOAA.
Scripps scientist V. Ram Nathan is quoted in a Science Daily article: "About five to 10 years ago we used to think about pollution as an urban problem. Now we have discovered, with new observations including satellite data, that these pollution clouds travel quickly and can cover an entire ocean. Scientists have shown that in a matter of five days pollution traveled from China to the United States, and in a matter of three to four days it can travel from the U.S. to Europe."
"The greenhouse gases are pushing in one direction, warming the ocean and trying to make more rain, and the aerosols are pushing in another direction for cooler oceans and less rain. The net effect is to drive the monsoon rain system away from South Asia into the equatorial and southern oceans," said Ram Nathan. "Some years the aerosols might win and in some years the greenhouse effect may win. So we are concerned that in coming decades the variability between the two will become large and it will be difficult to cope with rapid changes from year to year."
Get Info Objectives
1. Identify greenhouse gases.
2. Determine why some proposed replacements for greenhouse gases wouldn’t work.
3. Determine the percentage of the various greenhouse gases’
effects on global warming.
Gather Data Objectives
1. Determine the change in the concentration of carbon dioxide in the air.
2. Determine the possible causes of the greenhouse effect.
3. Determine the link between industrialization and the greenhouse effect.
Application Objectives
1. Hypothesize reasons for increases in production of certain greenhouse gases and propose solutions to global warming.
2. Infer what international problems need to be addressed to stop the greenhouse effect.
3. Describe the effects of global warming on humans and on plants.Before doing anything else, add the NOAA Research "Greenhouse Effect" site to Bookmarks or Favorites on your web browser.
What else can we do to slow global warming?
- Preserve existing forests and encourage reforestation.
- Develop alternative non-polluting energy sources.
- Slow population growth
- Encourage environmental laws and treaties
- Use energy more efficiently and insulate houses.
Effects of Global Warming
1. Predict the economic effects on people affected by increasingglobal temperatures.Answers will vary. Answers could include: increased crop production in some areas, decreased in others; polar ice cap melting; starvation due to breaks in the food web, etc.
2. Predict the effects on plants affected by increasing global temperatures and increased carbon dioxide concentration.Plants in some areas will thrive while others will not handle the increased
temperatures and will die. All plants need carbon dioxide, so they should grow better with an increased supply of carbon dioxide.
1. Identify greenhouse gases.
2. Determine why some proposed replacements for greenhouse gases wouldn’t work.
3. Determine the percentage of the various greenhouse gases’
effects on global warming.
Gather Data Objectives
1. Determine the change in the concentration of carbon dioxide in the air.
2. Determine the possible causes of the greenhouse effect.
3. Determine the link between industrialization and the greenhouse effect.
Application Objectives
1. Hypothesize reasons for increases in production of certain greenhouse gases and propose solutions to global warming.
2. Infer what international problems need to be addressed to stop the greenhouse effect.
3. Describe the effects of global warming on humans and on plants.Before doing anything else, add the NOAA Research "Greenhouse Effect" site to Bookmarks or Favorites on your web browser.
What else can we do to slow global warming?
- Preserve existing forests and encourage reforestation.
- Develop alternative non-polluting energy sources.
- Slow population growth
- Encourage environmental laws and treaties
- Use energy more efficiently and insulate houses.
Effects of Global Warming
1. Predict the economic effects on people affected by increasingglobal temperatures.Answers will vary. Answers could include: increased crop production in some areas, decreased in others; polar ice cap melting; starvation due to breaks in the food web, etc.
2. Predict the effects on plants affected by increasing global temperatures and increased carbon dioxide concentration.Plants in some areas will thrive while others will not handle the increased
temperatures and will die. All plants need carbon dioxide, so they should grow better with an increased supply of carbon dioxide.
Enrichment Activities
Research
1. Research Venus’ greenhouse effect. How is it different from Earth’s greenhouse effect?
2. Research ozone’s role as a greenhouse gas. Find out whichgreenhouse gases destroy ozone.
3. Mars’ atmosphere has a high concentration of carbon dioxide. Find out why Mars is so cold despite a high percentage of atmospheric CO2.
4. Develop a plan for all countries to help decrease the greenhouse effect.
Research
1. Research Venus’ greenhouse effect. How is it different from Earth’s greenhouse effect?
2. Research ozone’s role as a greenhouse gas. Find out whichgreenhouse gases destroy ozone.
3. Mars’ atmosphere has a high concentration of carbon dioxide. Find out why Mars is so cold despite a high percentage of atmospheric CO2.
4. Develop a plan for all countries to help decrease the greenhouse effect.
2 comments:
Nice Article !
Keep it up..
Interesting blog as for me. I'd like to read something more about that topic. Thanks for posting that information.
Joan Stepsen
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