Fandom

TARDIS Index File

Carbon dioxide

56,312articles in progress
Add New Page
Talk0 Share

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

WikipediaInfo

As was evident from the name, carbon dioxide was a compound of carbon and oxygen. It was most often considered in its gaseous state, particularly on the planet Earth, where it was a vital part, as the Second Doctor once remarked, of the Earth's "lower atmosphere". (TV: The Ice Warriors) On other planets, it was less important, as was obvious from the Sontaran attempt to change Earth's atmosphere to something more hospitable to their species. (TV: The Sontaran Stratagem)

Importance to Earth Edit

Carbon dioxide was particularly important to Earth's atmosphere. According to the Second Doctor, "The carbon dioxide in the Earth's atmosphere help[ed] to retain the Sun's heat." The removal of that gas resulted in "a sudden freeze up". Carbon dioxide levels began to drop precipitously around the year 4900. As Clent made clear, that was when Earth conquered hunger through artificial means. Since it was no longer necessary to grow food, people encroached on farmland all over the world. A dramatic reduction of vegetation ensued, resulting in the elimination of much of the atmosphere's carbon dioxide. What followed was the Second Ice Age of 5000. (TV: The Ice Warriors)

There was also danger to Earth's atmosphere if the carbon dioxide levels rose. People in the 20th and 21st centuries were concerned about this phenomenon, largely brought on by the increased use of cars. They were initially relieved by the introduction of ATMOS, a bit of technology retrofitted onto cars worldwide. For a brief time in the early 21st century, it seemed to be the answer to the atmospheric worry. However, it was revealed by UNIT and the Tenth Doctor to be a ruse which changed the Earth's atmosphere into one that enabled a Sontaran invasion of Earth. (TV: The Sontaran Stratagem / The Poison Sky)

Elsewhere in the universe Edit

Though its terrestrial origin was usually organic life, it was created by other things elsewhere in the universe. For instance, the mineral vionesium produced large quantities of carbon dioxide when exposed to oxygen. (TV: Terror of the Vervoids)

Also on Fandom

Random Wiki