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There have been a lot of upward trends in the past 100 years - population, industrialization, use of motor vehicles - each of thee contributes to GHG emissions, particularly carbon dioxide.

In addition, the deforestation of many areas of the world either through logging, climate shifts or the increasing need for agricultural land has reduced the ability of the eco-system to absorb carbon dioxide. Still in the carbon dioxide sequestration area, changing farming practices have reduced the amount of carbon retained in the soil.

Even more, the thawing of much of the permafrost in North America and Europe/Asia has liberated methane, a potent GHG with 21 times the impact of carbon dioxide.

Then again there are new GHGs which were not even thought of 100 years ago - substances like CFCs and SF6 - which are very potent GHGs.

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Q: Why have greenhouse gases increased so much in the past 100 years?
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What is the beneficial effect of the greenhouse gas?

If it weren't for the Greenhouse Effect, the Earth would be very cold. But it is only good to a certain point. We humans are throwing high levels of greenhouse gases into the air that is causing what we have labeled Global Warming.


What are green house gases or atmospheric gases?

Atmospheric gases trap heat so that Earth is not a frozen wasteland. Greenhouse gases is the term used to refer to heat-trapping gases such as carbon dioxide and methane because these gaseous components of the atmosphere make Earth function like a greenhouse-heat from the Sun that is reflected off the Earth is reflected back up to the atmosphere and the greenhouse gases trap some of this heat. Understand that greenhouse gases are necessary to retain some of the Sun's heat, but they are bad in excess; to much carbon dioxide( a greenhouse gas) contributes to global warming-too much heat from the Sun is trapped by the atmosphere so that temperatures on the surface rise.


Where do greenhouses gases trap energy?

Greenhouse gases are very light but they change how sunlight is reflected back out into space in that greenhouse gases do not allow as much sunlight to be reflected. This increases the amount of energy held within the atmosphere and warms the planet


Are greenhouse gases helpful?

Greenhouse gases are helpful because they keep the earth warm enough for life. They are essential.Too much greenhouse gases are unhelpful because they make the earth too hot. Global warming is causing climate change which may make the world very uncomfortable for our children and grandchildren.


What effect does water vapor and carbon dioxide play into the greenhouse effect?

Water vapor and carbon dioxide both absorb heat. The sun's heat rises from the surface of the earth and is captured by these greenhouse gases. This natural greenhouse effect has kept the earth warm for millions of years. Too much greenhouse gas, unfortunately, is causing climate change.

Related questions

What greenhouse gases do in the atmosphere?

Greenhouse gases keep the earth warm.Too much greenhouse gas is causing global warming.


How are greenhouses gases helpful?

Greenhouse gases are helpful because they keep the earth warm enough for life. Too much greenhouse gases warm the earth up too much.


How much greenhouse gases does coal produce?

sulphur dioxide.


What is the beneficial effect of the greenhouse gas?

If it weren't for the Greenhouse Effect, the Earth would be very cold. But it is only good to a certain point. We humans are throwing high levels of greenhouse gases into the air that is causing what we have labeled Global Warming.


What are green house gases or atmospheric gases?

Atmospheric gases trap heat so that Earth is not a frozen wasteland. Greenhouse gases is the term used to refer to heat-trapping gases such as carbon dioxide and methane because these gaseous components of the atmosphere make Earth function like a greenhouse-heat from the Sun that is reflected off the Earth is reflected back up to the atmosphere and the greenhouse gases trap some of this heat. Understand that greenhouse gases are necessary to retain some of the Sun's heat, but they are bad in excess; to much carbon dioxide( a greenhouse gas) contributes to global warming-too much heat from the Sun is trapped by the atmosphere so that temperatures on the surface rise.


Where do greenhouses gases trap energy?

Greenhouse gases are very light but they change how sunlight is reflected back out into space in that greenhouse gases do not allow as much sunlight to be reflected. This increases the amount of energy held within the atmosphere and warms the planet


Are greenhouse gases helpful?

Greenhouse gases are helpful because they keep the earth warm enough for life. They are essential.Too much greenhouse gases are unhelpful because they make the earth too hot. Global warming is causing climate change which may make the world very uncomfortable for our children and grandchildren.


How much greenhouse gases does a television emit in a year?

The actual television sets emit no greenhouse gases at all. The connections you could make between a TV set and greenhouse gases would be the emissions during the manufacturing process, and the greenhouse gases emitted as the powerplant generates electricity to run the device. The amount depends on the size of the set and how long it is running. If your TV is powered by electricity from nuclear or renewable sources, then it causes no greenhouse gases at all.


What are the GreenHouse Gas emissions in Antarctica?

Truly, there aren't enough machines producing greenhouse gases on the Antarctic continent to have much effect at all.


What are greenhouse gases used for?

Normally greenhouse gases are bad, but without it, Earth would have no way of holding in heat and our planet would be below 0 degrees. We're just putting out too much.


How much surface area of the earth is covered by greenhouse gases?

Greenhouse gases, particularly carbon dioxide, are part of the Earth's atmosphere; as such, they cover all of the Earth's surface. The whole world is covered by atmosphere.


What is the temperature of it atmosphere is increased by the greenhouse effect?

Both Earth and Venus have increase temperature due to a greenhouse effect. Venus has a much stronger greenhouse effect than Earth does.