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In May 2013, carbon dioxide levels reached 400 ppm (parts per million). This is 0.04%.
There are seasonal changes in levels each year. Highest in May (after the northern winter, when plants are dormant) and lowest in October.
See the CO2now link below.
Yearly averages:
2013 396.48
2012 393.82
2011 391.57
2010 389.78
2009 387.38 Copenhagen Accord
2008 385.59
2007 383.77
2006 381.90
1997 363.71 Kyoto Protocol
1992 356.38 Earth Summit in Rio de Janeiro
1987 349.16 The last year when the annual CO2 level was less than 350 ppm
1959 315.97 The first year with a full year of instrument data
Below are best estimates:
1950 300
1900 290
1700 280
Year 1 280
1000 BCE 280
3000 BCE 270
5000 BCE 260
6000 BCE 260
Scientists suggest our target should be 350 ppm (parts per million) or less.
A:CO2 varies slightly in a yearly cycle, and is also increasing steadily due to anthropogenic (man-made) emissions.Carbon dioxide is a well-mixed gas. This means that it doesn't matter where it is measured, it will show the same value because (on average) it is evenly distributed throughout the globe.
A:In 2011 Carbon dioxide is present in the earth's atmosphere at about 385 parts per million by volume or 582 parts per million by mass. It is usually stated in ppm to reduce decimal and "0" confusion. This would be the same as 0.000 385 (by volume) and 0.000 582 (by mass ) as decimal fractions and 0.0385% (by volume) and 0.0582% (by mass)According to the Wikipedia's math this is 3.0×1015 kg (3 000 gigatonnes) of the earth's 5.14×1018 kg (5 140 gigatonnes) total atmosphere.
A:This may not sound like much, but it has a powerful greenhouse effect. Considering it would be under 300 ppm without human emissions, this is a considerable upset in the balance of this greenhouse gas, and scientists anticipate earth's climate will continue adjusting to the current level for centuries yet to come. The length of time required for adjustment is known as "climate sensitivity."There are also several free iPhone climate applications such as CliMate Mobile were you can view weekly CO2 data from NOAA reporting stations. This data goes back to 1880 in detail, and more granularly (less precise) many millions of years.
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Historic levels are taken from glacial samples drilled in Antarctica. They show levels varied between 200 and 280 with regular intervals of about 100K years. The most recent glacial samples show levels around 280 ppm.
Wiki User
∙ 6y ago
Wiki User
∙ 8y agoIn May 2015, carbon dioxide levels were 403.7 ppm (parts per million) or 0.04037%.
See this link to www.CO2now.org for the latest levels.
Wiki User
∙ 11y agototal: 385 parts per million .......manmade: 105 parts per million. The pre-industrial atmospheric content was about 280 parts per million
Wiki User
∙ 12y agoYes, there is. Approximately 0.03% of the atmosphere is made up of carbon dioxide.
Wiki User
∙ 11y agoCO2now.org will give you this.
Wiki User
∙ 11y ago88 million tons a day
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How is co2 in the air useful to plants?
The plants use CO2 from air for photosynthesis. The air entering into its leaves through stomata comes in contact with photosynthetic cells and diffuse CO2 for assimilation to form carbohydrates.
What is the density of co2 gas compared to the air in the room?
CO2 gas is more dense than the mixture of air we breathe. You can see this when dry ice sublimates.
Why is there a higher percentage of CO2 in the air exhaled than inhaled?
The air we inhale comes from the athmosphere; the percentage of CO2 in the athmosphere is next to insignificant. The air we exhale comes from the cellular environment; cells give off CO2 as part of their metabolism, thus CO2 venous blood concentration is high
What are some sources of CO2?
The rectants in photosynthesis are CO2,water and sun
What is the source of the carbon in the sugars made by plant's?
Carbon Dioxide (CO2) from the air.
How does air pollution affect the ecosytem?
Air pollution has adverse effects on the ecosystem. # If the level of CO2 rises in the atmosphere, it causes greenhouse effect. As a result, global warming is a threat we all face today. # CFCs which are air pollutants can damage the ozone layer. # Rainfall is affected due to air pollution
How can you get CO2 out of the air?
it can get out of the air by cricleating are round and around untill you can see the co2 in the air thats when you no that the co2 is out because you can see the air
How does the atmosphere composition today compare with the air 1000 years ago?
1000 years ago the air was much the same as it is today, with a little less CO2 and a little less pollution.
What happens to the carbon dioxide level during hyperventilation in fresh air?
CO2 drops during Hyperventillation
How does C02 travel around the world?
CO2 is in the air and as the air moves so does the CO2 in it.
Why is it a problem for carbon dioxde to be released in to the atmosphere?
It really is not a problem. Currently CO2 levels are at a global level of 0.037%. Nature produces the vast bulk of this CO2 and life would stop on the planet if level dropped to 200 PPM. If you look at the Vostok webiste (where we get our old climate data from) one of the complaints that science experts have is the level of CO2 is too low! Only 280 PPM. Without CO2 the planet would be extremely cold and quite dead. Our oceans, which collect most of the CO2 from or atmosphere, do an awesome job of pulling the CO2 out of the air!
What is the element for air?
Co2 is the element for air
What can be done to stop CO2 getting into the air?
the first and fore most is to stop cutting trees, as when we give out carbon dioxide {CO2} the trees take co2. but when trees will not be there , co2 will be in the air.
Why are CO2 detectors being used by the UK border agency?
CO2 (carbon dioxide) is present in the breath exhaled by the body. Sensitive CO2 detectors sample the air from inside trucks as they arrive from Europe. They can detect illegal immigrants hiding in the truck as the level of CO2 would be higher than it would be if people hadn't been in there breathing out CO2 for ages while the truck crossed The Channel.also they of couldn't of breathed with air for the the journey
Where Is CO2 Available?
in the air
How is co2 in the air useful to plants?
The plants use CO2 from air for photosynthesis. The air entering into its leaves through stomata comes in contact with photosynthetic cells and diffuse CO2 for assimilation to form carbohydrates.
What percentage of exhaled breath is CO2?
The air we breath in is roughly 21% O2 and 0.04% CO2 and we breath out air that is 16% O2 and 4% CO2
