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Q: What trend do we see in the co2 levels in the atmosphere?
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Has there been CO2 in the atmosphere forever?

Yes, many times in the past we have seen higher levels then today. Since 1850 we have been on a slightly upward trend in CO2 levels. This appears to be a normal reaction to the warming climate which began 10,200 years ago. Whenever we see a rise in temperature for a long period of time, we see that CO2 follows (never leads) the trend. No CO2 in the atmosphere would kill off almost all plant life and with it, all animal life. CO2 levels may have change the past 150 years by as much as 0.008% (in total concentrations in our atmosphere 300 ppm to 380 ppm).


When the temperature rises is there more carbon dioxide in the air?

No, when the temperature rises, the amount of carbon dioxide in the air remains the same. However, the rate at which carbon dioxide is being emitted or absorbed by the environment may be affected by temperature changes.


Why do levels of Carbon Dioxide remain constant?

The amounts of any gas is a variable in our air. CO2, in our atmosphere has varied from 0.8 to as low as 0.027%. It is currently at 0.038% in much of the industrialized world. It still remains lower some areas, like Antarctica. We are still much lower in CO2 levels then many times in our past. The oceans are the big regulator here. They create 94% of all CO2 and absorb it back if levels get higher then the earth can support. If the planet warms, oceans absorb slightly less CO2 per day and that is why we see these variable levels. Forests are another large source of CO2. If we see fires or rotting trees they are giving off CO2. The vegetation on the floor of the forest is also giving off levels of CO2. Oxygen is very similar. It varies in concentrations in many area and temperature zones as well. Forests, for example, will have a higher concentration of oxygen.


Is carbon dioxide steadily increasing?

The reasons behind the rise in CO2 are in dispute, but burning trees and fossil fuels, combined with deforestation and volcanic activity, are the main cited causes. From 1960 to 2011, the Parts Per Million of CO2 in the atmosphere has gone from 310 PPM to 394 PPM. The average Global mean land-ocean temperature has been erratic, and may have increased 4 degrees C in 1960-2011 (wikipedia, global warming), but that is not enough to account for the CO2 rise. Charts showing the rise in carbon dioxide can be seen at the link below. __________________________________________________________________ The short answer to this question is disputably yes. There is a great deal of evidence and understanding on why CO2 levels have been rising for the past 10,000 years. This is due, in part, to the method the planet absorbs CO2. Over 75% of all CO2 absorption is through our open waters. Being more specific, it is through the open waters of the Northern Ocean. Water absorbs CO2 more readily in periods of cool temperatures and absorbs more slowly as temperatures warm. This is why we see CO2 levels will always follow temperature by some 800 years. This is not to say that some additions to the current levels of CO2 in our atmosphere are not man induced. It does point out however, that there is a natural issue also involved as temperatures have warmed some 11 degrees this current cycle.


How much have the atmospheric carbon dioxide concentrations increased in recent years?

Over the last 150 years, CO2 concentrations have increased from around 300 ppm to around 400 ppm - mostly in the last 70 years or so. Current scientific thinking is that anything over 350 ppm is likely to have unwanted consequences.

Related questions

Has there been CO2 in the atmosphere forever?

Yes, many times in the past we have seen higher levels then today. Since 1850 we have been on a slightly upward trend in CO2 levels. This appears to be a normal reaction to the warming climate which began 10,200 years ago. Whenever we see a rise in temperature for a long period of time, we see that CO2 follows (never leads) the trend. No CO2 in the atmosphere would kill off almost all plant life and with it, all animal life. CO2 levels may have change the past 150 years by as much as 0.008% (in total concentrations in our atmosphere 300 ppm to 380 ppm).


What happens to the climate if you put extra greenhouse gases in the atmosphere?

The climate you currently experience will change as the planet warms.A:There is no reliable evidence that levels of CO2 above 100PPM have any increased effect in the real world, although the IPCC and other political groups do make this claim. The bulk of green house gas is water vapor and these levels change change in the atmosphere from 0% to 5% rapidly with no corresponding temperature change. In fact, while the IPCC claims a 6% jump in CO2 over the past decade, the data shows a slight cooling trend. Historically, every cooling trend has started during times of high CO2 and every warming trend (including this one) has started during unusually low CO2 levels. We can clearly see, from actual data, that CO2 follows temperature and never has led it. (see links)


When the temperature rises is there more carbon dioxide in the air?

No, when the temperature rises, the amount of carbon dioxide in the air remains the same. However, the rate at which carbon dioxide is being emitted or absorbed by the environment may be affected by temperature changes.


How have the levels of carbon dioxide in the atmosphere recently changed?

The level of carbon dioxide in the atmosphere has recently increased.The planet has maintained a level of CO2 of around 280 parts per million by volume (ppmv) for the past few thousand years. This was 0.028% of the atmosphere.Direct measurements of CO2 over recent decades show that CO2 has risen to nearly 390 ppmv. This is an increase of 39%, and observations show CO2 is still rising.The change is small relative to the entire volume of the atmosphere, but the relative volume of CO2 has increased dramatically. This doesn't mean that historical CO2 has been constant forever. If we go back hundreds of thousands of years, we can see changes that correspond to past ice ages. Historical CO2 data is derived from ice cores in the Antarctic. The oldest record is from Vostok, but there are many others, and they show close agreement with each other.Historical CO2 levels are not relevant to the theory of climate change, but they do allow us to constrain climate sensitivity. By examining how much past changes in temperature changed CO2 concentrations, and how those changes in CO2 also changed temperature, we can learn more about the feedback between temperature and CO2.One common misconception is that the ocean can absorb all the CO2 we emit. This is clearly false, since CO2 levels are rising, and the extra CO2 can be traced to fossil fuel sources.A:The planet has never maintained any consistent level of CO2. Vostok records are our only historical source of direct measurements and show variations of between 260 and 320 ppm over the past 650K years. Vostok is a remote location in Greenland where we obtain ice samples. Currently CO2 levels here are about 280 ppm. Direct measurements of CO2 over recent decades show that CO2 has risen to nearly 390 ppmv in some areas such as Manua Loa Hawaii. This is an increase of 39%, and observations show CO2 is still rising there. The trend has been observed since 1979, when measurements started. The current belief is that this trend started as long as 10,000 years ago, shortly after the current warming trend started. Glacial samples agree that from a planetary stand point with this theory.The change is extremely small relative to the entire volume of the atmosphere, but the relative volume of CO2 appears to have increased by as much as 0.007%. Historically CO2 levels have always followed temperature by as much as 800 years. Historical CO2 data is derived from ice cores in the Antarctic. The oldest record is from Vostok.There is a general consensus that the levels of CO2 have indeed climbed and we understand this is a normal condition due to the warming of our oceans (The largest absorption of CO2 occurrs in our oceans). Wamer water absorbs CO2 more slowly. The current warming of our planet started roughly 10,200 years ago and could be a significant factor for this increase.


Have levels of greenhouse gases changed?

The levels of CO2 have increased significantly since 1900. CO2 is not the only Greenhouse Gas, but it is the most significant in terms of volume and impact. See link for graph.


Where in the carbon cycle do you see carbon and oxygen liked?

In the atmosphere, they are attached in the form of gaseous carbon dioxide (CO2).


Will CO2 be more or less soluble in water 100 degrees Celsius or 0 degrees Celsius?

As temperature increases, the ability for water to absorb CO2 decreases. That is why we see higher CO2 when temperature rises in our atmosphere.


How does the increase in carbon dioxide result in an icrease in earth temputer?

The theory goes that any three atom gas is capable of retaining more energy, thus warming the atmosphere. In the real world, we have yet to see this occur. Carbon dioxide levels have always followed temperature by up to 800 years. EVERY cooling period to date, according to glacial records, has occurred during times of CO2 levels in excess of 300 ppm. Every warming period, including this one (which started 10,200 years ago) has occurred in low CO2 periods. In practice, CO2 will follow temperature. The temperature has steadied the past few decades, so we should see CO2 levels start falling in a few hundred years.


Since 1750 the amount of carbon dioxide in your atmosphere has increased by how much percent?

Carbon Dioxide (CO2) levels in the atmosphere in 1750 were between 275 and 280 ppm (parts per million). In 2012 they were 396 ppm. That is a percentage increase of more than 40%. (41.4%, 280 to 394; 43.2%, 275 to 394) See the co2now.org site below.


How does ice absorb carbon dioxide?

It doesn't. It traps atmosphere in small bubbles when it freezes. Air contains roughly 0.03% CO2 so it only collects very small amounts. WATER, on the other hand, in our oceans does absorb CO2! The Ocean is the primary method we remove CO2 from the Atmosphere. That is why we see naturally higher CO2 levels when the temperature warms and why CO2 always follows temperature and never leads it. Melting ice allows more surface area and allows us to absorb more CO2. That is a negative feedback loop often ignored by doomsday people that believe in the theory of man induced global warming.


Why do levels of Carbon Dioxide remain constant?

The amounts of any gas is a variable in our air. CO2, in our atmosphere has varied from 0.8 to as low as 0.027%. It is currently at 0.038% in much of the industrialized world. It still remains lower some areas, like Antarctica. We are still much lower in CO2 levels then many times in our past. The oceans are the big regulator here. They create 94% of all CO2 and absorb it back if levels get higher then the earth can support. If the planet warms, oceans absorb slightly less CO2 per day and that is why we see these variable levels. Forests are another large source of CO2. If we see fires or rotting trees they are giving off CO2. The vegetation on the floor of the forest is also giving off levels of CO2. Oxygen is very similar. It varies in concentrations in many area and temperature zones as well. Forests, for example, will have a higher concentration of oxygen.


Is carbon dioxide steadily increasing?

The reasons behind the rise in CO2 are in dispute, but burning trees and fossil fuels, combined with deforestation and volcanic activity, are the main cited causes. From 1960 to 2011, the Parts Per Million of CO2 in the atmosphere has gone from 310 PPM to 394 PPM. The average Global mean land-ocean temperature has been erratic, and may have increased 4 degrees C in 1960-2011 (wikipedia, global warming), but that is not enough to account for the CO2 rise. Charts showing the rise in carbon dioxide can be seen at the link below. __________________________________________________________________ The short answer to this question is disputably yes. There is a great deal of evidence and understanding on why CO2 levels have been rising for the past 10,000 years. This is due, in part, to the method the planet absorbs CO2. Over 75% of all CO2 absorption is through our open waters. Being more specific, it is through the open waters of the Northern Ocean. Water absorbs CO2 more readily in periods of cool temperatures and absorbs more slowly as temperatures warm. This is why we see CO2 levels will always follow temperature by some 800 years. This is not to say that some additions to the current levels of CO2 in our atmosphere are not man induced. It does point out however, that there is a natural issue also involved as temperatures have warmed some 11 degrees this current cycle.