what adds carbon dioxide to the air

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https://www.usgs.gov/faqs/how-does-carbon-get-atmosphere

How does carbon get into the atmosphere? – USGS
https://www.usgs.gov/faqs/how-does-carbon-get-atmosphere
Atmospheric carbon dioxide comes from two primary sources—natural and human activities. Natural sources of carbon dioxide include most animals, which exhale carbon dioxide as a waste product. Human activities that lead to carbon dioxide emissions come primarily from energy production, including burning coal, oil, or natural gas.

https://science.howstuffworks.com/environmental/green-science/human-activities-increase-carbon-dioxide.htm

What human activities increase carbon dioxide in the …
https://science.howstuffworks.com/environmental/green-science/human-activities-increase-carbon-dioxide.htm
Although a certain amount of carbon dioxide (CO2) occurs naturally in the Earth’s atmosphere, there are several human activities that increase levels of the greenhouse gas.

https://news.climate.columbia.edu/2020/09/23/carbon-dioxide-distribution-atmosphere/

You Asked: How Does Carbon Dioxide Get So High Up Into the …

You Asked: How Does Carbon Dioxide Get So High Up Into the Atmosphere?

Carbon dioxide is a gas. The density of a gas increases as temperatures get colder. So, because temperatures decrease as we reach higher altitudes, gases become denser at higher altitudes. Denser objects tend to sink, pulled down by gravity.

https://azchemistry.com/what-is-the-use-of-carbon-dioxide-present-in-the-air

What Is The Use of Carbon Dioxide Present in The Air? – AZ …
https://azchemistry.com/what-is-the-use-of-carbon-dioxide-present-in-the-air
Carbon dioxide is used up and prepare their food through the process of photosynthesis. Therefore, atmospheric carbon dioxide in the air can provide nutrients through this substance in the air and also Uses Of Nitrogen In Soil and plants. 2.

https://www.theguardian.com/lifeandstyle/2020/dec/29/the-who-said-it-in-2020-quiz-from-vomit-drafts-to-gods-appointment

Carbon dioxide in the atmosphere
www.atmo.arizona.edu/students/courselinks/spring13/atmo170a1s1/1S1P_stuff/carbon_dioxide/atmos_carbon_dioxide.html
Carbon dioxide is added to the atmosphere naturally by respiration (animals breathe in oxygen and exhale carbon dioxide), decay, and volcanoes. Combustion of fossil fuels, a human activity also adds CO 2 to the atmosphere.

https://www.reference.com/science/main-sources-carbon-dioxide-atmosphere-2a0cdf8c2919dd14

What Are the Main Sources of Carbon Dioxide in the Atmosphere?
https://www.reference.com/science/main-sources-carbon-dioxide-atmosphere-2a0cdf8c2919dd14
The main sources of carbon dioxide in the atmosphere are decaying plants, waste products as a result of the respiration of animals and volcanic eruptions. Human activity also releases carbon dioxide into the air. The main source of this carbon dioxide is the burning of fossil fuels.

https://www.answers.com/Q/What_processes_add_carbon_dioxide_to_the_atmosphere

What processes add carbon dioxide to the atmosphere? – Answers
https://www.answers.com/Q/What_processes_add_carbon_dioxide_to_the_atmosphere
The process of respiration does not addcarbon dioxide to the air. It recycles it, as part of the carbon cycle. When we breathe, we take in oxygen and breathe out carbon dioxide – the same carbon…

https://www.climate.gov/news-features/understanding-climate/climate-change-atmospheric-carbon-dioxide

Climate Change: Atmospheric Carbon Dioxide | NOAA Climate.gov
https://www.climate.gov/news-features/understanding-climate/climate-change-atmospheric-carbon-dioxide
The global average amount of carbon dioxide hit a new record high in 2019: 409.8 parts per million. The annual rate of increase in atmospheric carbon dioxide over the past 60 years is about 100 times faster than previous natural increases, such as those that occurred at the end of the last ice age 11,000-17,000 years ago.

https://www.globalcitizen.org/en/content/iceland-carbon-capture-emissions-into-rock/

Iceland Is Sucking Carbon Dioxide From the Air and Turning …
https://www.globalcitizen.org/en/content/iceland-carbon-capture-emissions-into-rock/
Fans suck in air and specialised filters extract the carbon dioxide. Carbfix combines the carbon with water, forming a mild acid that is then pumped 800 to 2,000 metres below ground into basaltic rock. Within 2 years, 95% of what was carbon dioxide is petrified — turned to rock, said Edda Sif Aradóttir, CEO of Carbfix.

https://www.sciworthy.com/a-new-kind-of-battery-that-removes-carbon-dioxide-from-the-air/

A new kind of battery that removes carbon dioxide from the air
https://www.sciworthy.com/a-new-kind-of-battery-that-removes-carbon-dioxide-from-the-air/
Carbon capture initiatives (CCI) are technologies which filter out CO2 from gases release from burning fuel before it reaches the atmosphere. There is substantial scientific evidence that CO2 released by human activities is causing increases in global average temperature, otherwise known as climate change.