Difference between revisions of "Atmospheric CO2 Measure"

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=== 2019 ===
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* (Wikipedia, 2019) ⇒ https://en.wikipedia.org/wiki/Carbon_dioxide_in_Earth's_atmosphere Retrieved:2019-6-14.
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** [[Carbon dioxide]] () is an important [[trace gas]] in [[atmosphere of Earth|Earth's atmosphere]]. It is an integral part of the [[carbon cycle]], a biogeochemical cycle in which [[carbon]] is exchanged between the Earth's [[oceans]], soil, rocks and the [[biosphere]]. [[Plant]]s and other [[photoautotroph]]s use solar energy to produce carbohydrate from atmospheric carbon dioxide and water by [[photosynthesis]]. Almost all other organisms depend on carbohydrate derived from photosynthesis as their primary source of energy and carbon compounds. absorbs and emits [[infrared]] radiation at [[wavelength]]s of 4.26 [[µm]] (asymmetric stretching [[Infrared spectroscopy|vibrational mode]]) and 14.99&nbsp;µm (bending vibrational mode) and consequently is a [[greenhouse gas]] that plays a significant role in influencing [[Earth]]'s surface temperature through the [[greenhouse effect]].  Concentrations of in the atmosphere were as high as 4,000 [[parts per million]] (ppm) during the [[Cambrian|Cambrian period ]] about 500 million years ago to as low as 180 ppm during the [[Quaternary glaciation]] of the last two million years.<ref name="Cambridge2013"></ref> Estimates based on reconstructed temperature records suggests that the amount of during the last 420 million years ago was with ~2000 ppm highest during the [[Devonian]] (∼400 Myrs ago) and [[Triassic]] (220–200 Myrs ago), with a few maximum estimates ranging up to ∼3,700±1,600 ppm (215 Myrs ago).  Global annual mean concentration has increased by more than 45% since the start of the [[Industrial Revolution]], from 280 ppm during the 10,000 years up to the mid-18th century<ref name="Cambridge2013"/> to 415 ppm as of May 2019.<ref name=ESRLtrends></ref> <ref name="NOAA_CO2annual"></ref> The present concentration is the highest for 14 million years.  The increase has been caused by [[Anthropogenic greenhouse gases|human activities]], particularly the burning of [[fossil fuels]] and [[deforestation]].<ref name="Etheridge1996"></ref> This increase of and other long-lived greenhouse gases in Earth's atmosphere has produced the current episode of [[global warming]]. About 30–40% of the released by humans into the atmosphere dissolves into oceans, rivers and lakes,<ref name=millero95></ref> <ref name=Feely04></ref> which has produced [[ocean acidification]].

Revision as of 08:36, 14 June 2019

An Atmospheric CO2 Measure is an atmospheric measure of Carbon Dioxide gas.



References

2018

  1. Trends in Atmospheric Carbon Dioxide
  2. Cite error: Invalid <ref> tag; no text was provided for refs named NOAA_CO2annual
  3. Cite error: Invalid <ref> tag; no text was provided for refs named deep ice
  4. Climate Change 2001: The Scientific Basis
  5. Cite error: Invalid <ref> tag; no text was provided for refs named Etheridge1996
  6. Cite error: Invalid <ref> tag; no text was provided for refs named millero95
  7. Cite error: Invalid <ref> tag; no text was provided for refs named Feely04

2017

2013

  • https://phys.org/news/2013-03-link-co2-mass-extinctions-species.html
    • QUOTE: It's has been know that massive increases in emission of CO2 from volcanoes, associated with the opening of the Atlantic Ocean in the end-Triassic Period, set off a shift in state of the climate which caused global mass extinction of species, eliminating about 34% of genera. The extinction created ecological niches which allowed the rise of dinosaurs during the Triassic, about 250-200 million years ago.

      New research released this morning in Science Express has refined the dating of this wave of volcanism. It shows marine and land species disappear from the fossil record within 20,000 to 30,000 years from the time evidence for the eruption of large magma flows appears, approximately 201 million years ago. These volcanic eruptions increased atmospheric CO2 and increased ocean acidity.



2019

  • 1.0 1.1 Cite error: Invalid <ref> tag; no text was provided for refs named Cambridge2013
  • Cite error: Invalid <ref> tag; no text was provided for refs named ESRLtrends
  • Cite error: Invalid <ref> tag; no text was provided for refs named NOAA_CO2annual
  • Cite error: Invalid <ref> tag; no text was provided for refs named Etheridge1996
  • Cite error: Invalid <ref> tag; no text was provided for refs named millero95
  • Cite error: Invalid <ref> tag; no text was provided for refs named Feely04