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Why have carbon dioxide levels in the earth fallen?
Carbon dioxide levels have not fallen. They have been gradually increasing for the past 250 years when man began burning fossil fuels and cutting down trees. Since 1980 CO2 levels have increased more rapidly than ever before.
Why are carbon dioxide levels decreasing?
Carbon dioxide levels are not decreasing in the atmosphere, in fact, they are increasing. In 1960 levels were 316 ppm. In 1970 levels were 325 ppm. In 1980 levels were 338 ppm. In 1990 levels were 353 ppm. In 2000 levels were 369 ppm. In 2010 levels were 388 ppm. Jan of 2012 levels were 393.09 ppm. As of today we are at 393.68 ppm at Manua Loa.
By how much percent has carbon dioxide in the air increased since 1860?
In 1860 the percentage of carbon dioxide in the air was 278 ppm (parts per million), which is 0.0278%. This had been the average figure for the previous 2000 years of the pre-Industrial Age.In 1900 it was 295 ppm.In 1960 it was 315 ppm.In 1980 it was 335 ppm.In 1990 it was 350 ppm.In 2000 it was 369 ppm.In 2010 it was 388 ppm.In 2011 it was 392 ppm. (March 2011)This is an increase of 114 ppm, a 41% increase over the original 1860 amount.
What fossil fuel rapidly increases the amount of carbon dioxide in the atmosphere?
The 3 main fossil fuels that affect the atmosphere are:coalnatural gasoilWhen burned, these release carbon dioxide into the air.However, did you know that ANY burning of ANY items also release CO2?Until about the 1970s, every family in the US had a "burn barrel" in the backyard where they burned household trash. This became illegal in most communities between 1970-1980 because people complained about the smoke smell.Around the same time, 1970-1980, communities in the US were forbidden to burn autumn leaves they collected from their lawns / yards. Families did this burning every September. Now, leaves must be bagged for garbage, or mulched.However, still today in many countries, people do "slash and burn" farming. They cut unwanted vegetation ("slash"), let the piles dry, and set the piles on fire ("burn"). Across some countries, the land shows blackened "burn scars". In some areas, the air pollution becomes so bad that it affects neighboring countries.In many countries, including the US, traffic clogs roads. The burning of gasoline in the cars' gas tanks causes emissions that include CO2.
Ice core carbon dioxide levels time line?
Ice core samples, by definition, must be taken on polar ice caps, because that's the only place where ice stays frozen year-round, and the only place where it can accumulate year after year. But polar ice caps are surrounded by millions of square miles of near-freezing water. Water absorbs carbon dioxide. In fact, the solubility of carbon dioxide in water increases, geometrically, as water temperature decreases, reaching maximum solubility at the freezing point. Of course, this is also true of nitrogen and oxygen, the two primary components of air. However, carbon dioxide is much more soluble than either of those at all temperatures. At the freezing point, carbon dioxide is 30 times more soluble than oxygen and 70 times more soluble than nitrogen. Now, if you have all this very cold, nearly freezing water surrounding these ice caps, sucking up carbon dioxide out of the polar atmosphere, at nearly the highest possible rate, 30 times faster than oxygen, and 70 times faster than nitrogen, doesn't it stand to reason that the air that remains might just have a lot less carbon dioxide in it than the atmosphere across the rest of the planet? This is the air that is being trapped in air bubbles, to be preserved in ice core samples. And it is not representative of the atmosphere as a whole. There is more to this answer. CO2 will also diffuse through the ice at a set rate and the effect over time will be that the CO2 concentration will be a function of the vapor pressure of the CO2 in the trapped air, and the rate of diffusion of the CO2 through the ice. After a sufficiently long period under pressure it would be expected to stabilize at a level below that in the original bubbles. It is probable that agreement of the CO2 levels in ice cores is due to this diffusion function over time under particular pressures, rather than the original percentage of CO2 in the trapped air.
Why have carbon dioxide levels in the earth fallen?
Carbon dioxide levels have not fallen. They have been gradually increasing for the past 250 years when man began burning fossil fuels and cutting down trees. Since 1980 CO2 levels have increased more rapidly than ever before.
Why are carbon dioxide levels decreasing?
Carbon dioxide levels are not decreasing in the atmosphere, in fact, they are increasing. In 1960 levels were 316 ppm. In 1970 levels were 325 ppm. In 1980 levels were 338 ppm. In 1990 levels were 353 ppm. In 2000 levels were 369 ppm. In 2010 levels were 388 ppm. Jan of 2012 levels were 393.09 ppm. As of today we are at 393.68 ppm at Manua Loa.
By how much percent has carbon dioxide in the air increased since 1860?
In 1860 the percentage of carbon dioxide in the air was 278 ppm (parts per million), which is 0.0278%. This had been the average figure for the previous 2000 years of the pre-Industrial Age.In 1900 it was 295 ppm.In 1960 it was 315 ppm.In 1980 it was 335 ppm.In 1990 it was 350 ppm.In 2000 it was 369 ppm.In 2010 it was 388 ppm.In 2011 it was 392 ppm. (March 2011)This is an increase of 114 ppm, a 41% increase over the original 1860 amount.
Is there an increase in sports participation since 1980?
no
What was the total change in pH in the rainwater from 1880 to 1980?
The total change in pH in rainwater from 1880 to 1980 was approximately 0.2 to 0.4 units. This decrease in pH is primarily due to increased levels of atmospheric pollutants, such as sulfur dioxide and nitrogen oxides, leading to acid rain formation.
What is the most abundant dissolved gas in magma?
The most common dissolved gas in magma is water vapor, or H2O. Other important gases that may be present in magma and released during volcanic eruptions are carbon dioxide, sulfur dioxide, and hydrogen sulfide.
What has been the historical carbon dioxide percentage of air over the past 10 000 years?
From 10 000 BC till 1860, the pre-Industrial Age, the carbon dioxide in air was approximately 278 ppm (0.0278%). In 1900 it was 295 ppm. In 1960 it was 315 ppm. In 1980 it was 335 ppm. In 1990 it was 350 ppm. In 2000 it was 369 ppm. In 2010 it was 388 ppm. In 2011 it was 392 ppm. (March 2011)
How much did the price of a bottle of dish soap increase from 1980 to 1990?
$0.43
How much did the price of a jar of peanut butter increase from 1980 to 2000?
$1.62
How much carbon dioxide did the Krakatoa eruption of 1883 emit?
The Krakatoa eruption of 1883 emitted an estimated 6 cubic miles (25 cubic kilometers) of volcanic ash, dust, and sulfuric gases, including carbon dioxide. The exact amount of carbon dioxide specifically emitted is difficult to quantify accurately due to limited historical records and variations in estimating methods.
What fossil fuel rapidly increases the amount of carbon dioxide in the atmosphere?
The 3 main fossil fuels that affect the atmosphere are:coalnatural gasoilWhen burned, these release carbon dioxide into the air.However, did you know that ANY burning of ANY items also release CO2?Until about the 1970s, every family in the US had a "burn barrel" in the backyard where they burned household trash. This became illegal in most communities between 1970-1980 because people complained about the smoke smell.Around the same time, 1970-1980, communities in the US were forbidden to burn autumn leaves they collected from their lawns / yards. Families did this burning every September. Now, leaves must be bagged for garbage, or mulched.However, still today in many countries, people do "slash and burn" farming. They cut unwanted vegetation ("slash"), let the piles dry, and set the piles on fire ("burn"). Across some countries, the land shows blackened "burn scars". In some areas, the air pollution becomes so bad that it affects neighboring countries.In many countries, including the US, traffic clogs roads. The burning of gasoline in the cars' gas tanks causes emissions that include CO2.
Ice core carbon dioxide levels time line?
Ice core samples, by definition, must be taken on polar ice caps, because that's the only place where ice stays frozen year-round, and the only place where it can accumulate year after year. But polar ice caps are surrounded by millions of square miles of near-freezing water. Water absorbs carbon dioxide. In fact, the solubility of carbon dioxide in water increases, geometrically, as water temperature decreases, reaching maximum solubility at the freezing point. Of course, this is also true of nitrogen and oxygen, the two primary components of air. However, carbon dioxide is much more soluble than either of those at all temperatures. At the freezing point, carbon dioxide is 30 times more soluble than oxygen and 70 times more soluble than nitrogen. Now, if you have all this very cold, nearly freezing water surrounding these ice caps, sucking up carbon dioxide out of the polar atmosphere, at nearly the highest possible rate, 30 times faster than oxygen, and 70 times faster than nitrogen, doesn't it stand to reason that the air that remains might just have a lot less carbon dioxide in it than the atmosphere across the rest of the planet? This is the air that is being trapped in air bubbles, to be preserved in ice core samples. And it is not representative of the atmosphere as a whole. There is more to this answer. CO2 will also diffuse through the ice at a set rate and the effect over time will be that the CO2 concentration will be a function of the vapor pressure of the CO2 in the trapped air, and the rate of diffusion of the CO2 through the ice. After a sufficiently long period under pressure it would be expected to stabilize at a level below that in the original bubbles. It is probable that agreement of the CO2 levels in ice cores is due to this diffusion function over time under particular pressures, rather than the original percentage of CO2 in the trapped air.
