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Data source: Environmental Protection Agency
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Air pollution in Rapid City, South Dakota correlates with...

VariableCorrelationYearsHas img?
Total likes of Mark Rober YouTube videosr=0.7613yrsNo
The number of pipelayers in South Dakotar=0.6920yrsNo
The number of university political science teachers in South Dakotar=0.6516yrsNo
Dollar General's stock price (DG)r=0.5114yrsNo
Amount spent on Pet Gifts on Valentine's Day in the USr=-0.889yrsNo



Air pollution in Rapid City, South Dakota also correlates with...

VariableCorrelationYearsSys. Score
Solar power generated in Gabonr=0.8810yrs280
Average length of Computerphile YouTube videosr=0.7211yrs161
Liquefied petroleum gas used in Kuwaitr=0.7222yrs160
Geothermal power generated in Ethiopiar=0.6822yrs156
Average length of LEMMiNO YouTube videosr=0.6612yrs153
Asthma prevalence in American childrenr=0.617yrs148
Number of edits to the Wikipedia article for Confirmation biasr=0.5721yrs147
Popularity of the 'balloon boy' memer=0.6715yrs139
Popularity of the 'im on a boat' memer=0.6518yrs139
Asthma prevalence in American childrenr=0.5317yrs137
Number of edits to the Wikipedia article for influenzar=0.4921yrs135
Asthma prevalence in American childrenr=0.4917yrs131
The number of pediatricians in South Dakotar=0.6216yrs125
Gasoline pumped in Saint Vincent/Grenadinesr=0.6722yrs122
The average number of likes on 'Be Smart' science YouTube videosr=0.6611yrs122
UK Annual Consumer Price Index (CPI) for Spiritsr=0.5620yrs120
Bachelor's degrees awarded in Transportationr=0.7210yrs117
The number of movies Zendaya appeared inr=0.6713yrs117
The number of movies James Stewart appeared inr=0.5924yrs116
Google searches for 'restaurant near me'r=0.5613yrs115
Bachelor's degrees awarded in Psychologyr=0.710yrs114
The average number of likes on Extra History YouTube videosr=0.6412yrs110
Master's degrees awarded in Psychologyr=0.6710yrs110
Google searches for 'why do i have green poop'r=0.4720yrs110
Solar power generated in Mozambiquer=0.7910yrs106
Nielsen Ranking of Smallville Season Finaler=0.5910yrs106
The number of movies Tyrese Gibson appeared inr=0.5224yrs106
Popularity of the first name Cayleer=0.5823yrs104
The number of books by Stephen King publishedr=0.5115yrs102
US household spending on entertainmentr=0.5523yrs102
Average length of Matt Parker's YouTube videosr=0.6313yrs100
Drenching rain in Sydneyr=0.586yrs100
Global iPod Salesr=0.539yrs96
Google searches for 'Nintendo'r=0.4816yrs96
Popularity of the first name Maliar=0.5223yrs96
Solar power generated in Moldovar=0.798yrs94
The number of railroad conductors and yardmasters in South Dakotar=0.6213yrs92
Popularity of the first name Palomar=0.523yrs92
Ford Motor Company's stock price (F)r=-0.5322yrs91
Carnival Corporation's stock price (CCL)r=-0.5322yrs91
Total length of Mark Rober YouTube videosr=0.6213yrs88
Customer satisfaction with ABCNews.comr=-0.5120yrs88
Annual US household spending on tobacco products and smoking suppliesr=0.4623yrs88
Drenching rain in Perthr=-0.846yrs88
Hot days in Perthr=0.486yrs86
U.S. hotel industry occupancy rater=-0.7814yrs85
Total likes of 'Be Smart' science YouTube videosr=0.6311yrs78
Solar power generated in Bosnia and Herzegovinar=0.739yrs76
Bachelor's degrees awarded in Military technologiesr=0.6410yrs75
The number of financial services sales agents in South Dakotar=0.5220yrs74
The number of movies Andrew Garfield appeared inr=0.5419yrs74
The average number of likes on Mark Rober YouTube videosr=0.6113yrs66
Google searches for 'whatsapp'r=0.4914yrs65
Solar power generated in Croatiar=0.710yrs62
Popularity of the first name Fernandar=0.4923yrs61
Associates degrees awarded in Biological sciencesr=0.6111yrs60
The number of movies Drew Barrymore appeared inr=0.4724yrs58
The number of postsecondary art, drama, and music teachers in South Dakotar=0.4719yrs56
GSK plc's stock price (GSK)r=-0.4622yrs54
Total likes of MrBeast's YouTube videosr=0.5812yrs51
Google searches for 'instagram'r=0.4713yrs51
Popularity of the first name Allegrar=0.4723yrs48
Solar power generated in Albaniar=0.6412yrs46
Master's degrees awarded in law enforcement and firefightingr=0.6210yrs42
Total likes of Extra History YouTube videosr=0.5812yrs41
Popularity of the first name Byronr=0.4623yrs36
The number of wastewater treatment plant operators in South Dakotar=0.513yrs34
Liquefied petroleum gas used in Georgiar=0.5722yrs32
Master's degrees awarded in Parks & Recreationr=0.610yrs29
Popularity of the first name Melinar=0.4623yrs26
The number of nursing assistants in South Dakotar=0.5111yrs24
Gasoline pumped in Togor=0.5722yrs22
Associates degrees awarded in gender studiesr=0.611yrs18
How geeky 'Be Smart' science YouTube video titles arer=0.7511yrs16
Popularity of the first name Heathr=0.4623yrs16
Jet fuel used in Bermudar=0.5622yrs11
Popularity of the first name Kordellr=0.4523yrs5
Average length of Technology Connections YouTube videosr=0.559yrs4
Master's degrees awarded in Military technologiesr=0.5710yrs4
The number of nurse anesthetists in South Dakotar=0.4511yrs4
Electricity generation in Antarcticar=0.612yrs0
Associates degrees awarded in Psychologyr=0.5611yrs-7
How provocative PBS Space Time YouTube video titles arer=0.749yrs-8
Renewable energy production in Antarcticar=0.612yrs-10
The average number of likes on Matt Parker's YouTube videosr=0.5113yrs-18
Solar power generated in Eswatinir=0.5812yrs-24
Total length of 'Be Smart' science YouTube videosr=0.5311yrs-28
Wind power generated in Fijir=0.5415yrs-36
Average length of Numberphile YouTube videosr=0.513yrs-40
Kerosene used in Samoar=0.5122yrs-47
How 'hip and with it' 'Be Smart' science YouTube video titles arer=0.711yrs-52
Solar power generated in Chiler=0.649yrs-58
Average length of Casually Explained YouTube videosr=0.519yrs-62
Solar power generated in Omanr=0.639yrs-69
Total length of Deep Look YouTube videosr=0.510yrs-73
Biomass power generated in New Zealandr=0.4622yrs-82


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You caught me! While it would be intuitive to sort only by "correlation," I have a big, weird database. If I sort only by correlation, often all the top results are from some one or two very large datasets (like the weather or labor statistics), and it overwhelms the page.

I can't show you *all* the correlations, because my database would get too large and this page would take a very long time to load. Instead I opt to show you a subset, and I sort them by a magic system score. It starts with the correlation, but penalizes variables that repeat from the same dataset. (It also gives a bonus to variables I happen to find interesting.)
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