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Levels of carbon dioxide in 1750 were approximately 275 parts per million. Today (2011) concentrations are approximately 392 ppm, an increase of more than 40 percent.

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Why have the levels of carbon dioxide changed since the early earths atmosphere?

The levels of carbon dioxide have changed since the early Earth's atmosphere due to various factors such as volcanic activity, changes in ocean chemistry, and the evolution of plants. Over time, these factors have influenced the balance of carbon dioxide in the atmosphere, leading to fluctuations in its levels.


How has the concentration of carbon dioxide in the atmosphere changed since the start of the Industrial Revolution?

The Short [Shout] Answer can only be: "Through the Roof!"


Which terrestrial planet has a primary atmosphere?

Venus has a primary atmosphere, composed mainly of carbon dioxide with some nitrogen and trace gases. This atmosphere has been present since the planet's formation and has not significantly changed over time.


What gas has increase in concentration in the atmosphere since the beginning of the industrial revolution?

Carbon dioxide


What atmospheric element has increased in the atmosphere since the beginning of the Industrial Revolution?

Carbon Dioxide


Does warm carbon dioxide rise faster than cold carbon dioxide?

In an atmosphere of carbon dioxide, warm carbon dioxide would rise. Since carbon dioxide is better than twice as dense as air, it would need to be really hot before it would rise.


What are some of mars atmosphere?

The atmosphere of mars is thin and is 95.32% carbon dioxide. Since it is so thin, not much is found in it.


How have the levels of carbon dioxide and oxygen changed since the big bang?

Since the Big Bang, the levels of carbon dioxide and oxygen have changed significantly. Carbon dioxide levels were initially much higher due to volcanic activity, but then decreased as photosynthetic organisms evolved and absorbed CO2 to produce oxygen. Oxygen levels gradually increased as a result of this photosynthesis, leading to the oxygen-rich atmosphere we have today.


Is it true or false that the carbon dioxide level in the atmosphere has been increasing since 1900?

True. The carbon dioxide level in the Earth's atmosphere has been increasing since around 1900 due to human activities such as burning fossil fuels and deforestation. This increase in carbon dioxide is a major contributor to global warming and climate change.


Since carbon dioxide is heavier than oxygen- why doesn't carbon dioxide form a layer in atmosphere?

Carbon dioxide blankets are used in pits to kill cattle without "violence". CO2 diffuses into the atmosphere. Ozone is found where it is made, and decays into oxygen before it can diffuse very far.


What has caused Carbon Dioxide levels to steadily increase since the 1800s?

The burning of fossil fuels (coal & oil) is the primary cause of the increase in carbon dioxide levels in the atmosphere.


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.