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WikiCards · Card list · Science cards · Charles David Keeling
Common card · Science
Charles David Keeling, a Common card
Charles David Keeling was an American scientist whose recording of atmospheric carbon dioxide at the Mauna Loa Observatory confirmed Svante Arrhenius's proposition of the possibility of anthropogenic contribution to the greenhouse effect and global warming, by documenting the steadily rising carbon dioxide levels.
- Rarity
- Common
- Domain
- Science
- ATK
- 64
- DEF
- 42
- Power
- 106
- Wikipedia reads a year
- 11,000
Power 106 (ATK + DEF): stronger than 45 % of WikiCards cards.
Charles David Keeling quiz: 3 questions
Three questions on the Charles David Keeling card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
The Keeling Curve measures the ______ buildup of carbon dioxide, a greenhouse gas, in the atmosphere.
Answer
progressive. The Keeling Curve measures the progressive buildup of carbon dioxide, a greenhouse gas, in the atmosphere. From the Charles David Keeling article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
John Arbuthnot. John Arbuthnot 67 · Charles David Keeling 64 · Tomas Lindahl 61 · Naoko Yamazaki 57 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- The Keeling Curve measures the progressive buildup of carbon dioxide, a greenhouse gas, in the atmosphere.
Why it is Common
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Charles David Keeling article was read about 11,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 64 and blocks with 42: each hit it takes is cut by 17 %.
How to get Charles David Keeling
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Charles David Keeling in the power ranking, all domains together.
- William Samuel JohnsonCommon · History · ATK 64 DEF 42
- Aed CarabaoCommon · Arts · ATK 66 DEF 40
- BlubberhousesCommon · Society · ATK 58 DEF 48
- Cured fishCommon · Society · ATK 60 DEF 46
- DamaturuCommon · Society · ATK 58 DEF 48
- Edo neo-ConfucianismCommon · Science · ATK 60 DEF 46
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Credits
Text : Wikipedia, Charles David Keeling (revision), CC BY-SA 4.0. Photo : National Science Foundation, Public domain, Wikimedia Commons.
