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Data source: Environmental Protection Agency
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Air pollution in Iowa City correlates with...

VariableCorrelationYearsHas img?
Google searches for 'how to build a lightsaber'r=0.8220yrsYes!
Google searches for 'cia hotline'r=0.820yrsYes!


Air pollution in Iowa City also correlates with...

VariableCorrelationYearsSys. Score
Total likes of Mark Rober YouTube videosr=0.8913yrs328
Average length of OverSimplified YouTube videosr=0.917yrs320
The average number of likes on Extra History YouTube videosr=0.8512yrs302
The number of fine artists in Iowar=0.8616yrs301
Biomass power generated in Panamar=0.6841yrs226
Kerosene used in U.S. Pacific Islandsr=0.6941yrs224
Kerosene used in Eritrear=0.7528yrs220
The number of movies Laurence Olivier appeared inr=0.6943yrs215
Popularity of the first name Stefanier=0.7342yrs211
Popularity of the first name Eileenr=0.7142yrs208
Popularity of the first name Jermainer=0.742yrs206
Average number of milk cows in the United Statesr=0.5942yrs204
Google searches for 'snoop dog'r=0.7820yrs190
Gasoline pumped in Albaniar=0.6541yrs188
Petroluem consumption in Bulgariar=0.6441yrs176
Popularity of the first name Stacyr=0.6842yrs174
Global count of operating nuclear power plantsr=-0.6542yrs168
The number of movies Peter OToole appeared inr=0.5742yrs166
Popularity of the first name Latoyar=0.6842yrs164
Total likes of MrBeast's YouTube videosr=0.8312yrs164
The number of brickmasons in Iowar=0.7520yrs164
The number of fast food cooks in Iowar=0.7320yrs160
Popularity of the first name Jasonr=0.6742yrs152
Average length of LEMMiNO YouTube videosr=0.8212yrs152
Google searches for 'attacked by a squirrel'r=0.6920yrs149
Swiss cheese consumptionr=0.6727yrs146
Weyerhaeuser Company's stock price (WY)r=0.5622yrs142
Popularity of the first name Jenniferr=0.6642yrs140
Citigroup's stock price (C)r=0.5422yrs139
Barclays' stock price (BCS)r=0.5322yrs138
Asthma prevalence in American childrenr=0.5317yrs137
Annual US household spending on floor coveringsr=0.6823yrs136
Number of Portugal matches played by Cristiano Ronaldor=0.6520yrs134
US production of cottage cheeser=0.6422yrs134
Google searches for 'report UFO sighting'r=0.620yrs134
Kerosene used in United Statesr=0.6242yrs134
Popularity of the first name Adamr=0.6642yrs130
The number of paving, surfacing, and tamping equipment operators in Iowar=0.720yrs126
Total likes of Extra History YouTube videosr=0.812yrs124
Kerosene used in Italyr=0.642yrs122
Google searches for 'harry potter'r=0.7320yrs122
Popularity of the first name Heidir=0.6642yrs120
The number of travel agents in Iowar=0.6920yrs114
Kerosene used in Mexicor=0.6239yrs112
Popularity of the first name Staceyr=0.6642yrs110
Google searches for 'learn spanish'r=0.7120yrs109
Bank of America's stock price (BAC)r=0.5222yrs106
The number of typists in Iowar=0.6920yrs104
Average length of Technology Connections YouTube videosr=0.749yrs102
Kerosene used in Romaniar=0.6141yrs102
Popularity of the first name Jodir=0.6642yrs100
Google searches for 'how to treat internal bleeding'r=0.7120yrs99
The number of tool and die makers in Iowar=0.6920yrs94
HSBC Holdings' stock price (HSBC)r=0.5122yrs94
Kerosene used in Turkiyer=0.642yrs92
Total likes of 'Be Smart' science YouTube videosr=0.7211yrs91
Popularity of the first name Lynnr=0.6642yrs90
Google searches for 'how to treat a snake bite'r=0.6820yrs84
UBS Group AG's stock price (UBS)r=0.5122yrs84
The number of postal service machine operators in Iowar=0.6820yrs83
Average length of Numberphile YouTube videosr=0.713yrs80
Popularity of the first name Jodyr=0.6642yrs80
Kerosene used in Australiar=0.5942yrs80
Total likes of Steve Mould's YouTube videosr=0.6915yrs70
Popularity of the first name Audrar=0.6642yrs70
Kerosene used in Boliviar=0.641yrs70
Google searches for 'how to immigrate to norway'r=0.5520yrs64
Popularity of the first name Denar=0.6642yrs60
Kerosene used in Norwayr=0.5942yrs60
The number of private detectives in Iowar=0.6720yrs58
Google searches for 'why isnt 11 pronounced onety one'r=0.6719yrs54
Average number of comments on OverSimplified YouTube videosr=0.757yrs52
Popularity of the first name Adrianner=0.6642yrs50
Gasoline pumped in Bulgariar=0.5941yrs49
The number of city bus drivers in Iowar=0.6720yrs48
Google searches for 'white house hotline'r=0.5520yrs43
Popularity of the first name Amyr=0.6542yrs39
Liquefied petroleum gas used in Netherlands Antillesr=0.5941yrs39
Average length of Computerphile YouTube videosr=0.6311yrs38
The number of compensation and benefits managers in Iowar=0.6819yrs37
Popularity of the first name Angelar=0.6542yrs29
Google searches for 'E.T. phone home'r=0.6720yrs28
Kerosene used in Canadar=0.5842yrs28
The average number of likes on MrBeast's YouTube videosr=0.6212yrs27
The number of data entry keyers in Iowar=0.6720yrs26
Popularity of the first name Lisar=0.6542yrs19
Google searches for 'black holes'r=0.6720yrs18
Petroluem consumption in Somaliar=0.5841yrs18
The number of switchboard operators in Iowar=0.6620yrs15
Popularity of the first name Carrier=0.6542yrs9
Total likes of SciShow Space YouTube videosr=-0.8910yrs6
Gasoline pumped in Guamr=0.5741yrs6
The number of forging machine setters, operators, and tenders, metal and plastic in Iowar=0.6620yrs5
Google searches for 'XL tee shirts'r=0.6420yrs4
Google searches for 'Panama Canal'r=0.6420yrs-6
The number of library assistants in Iowar=0.6520yrs-6
Geothermal power generated in United Statesr=-0.741yrs-6
The number of transportation inspectors in Iowar=0.6520yrs-16
Hydopower energy generated in Fijir=-0.7139yrs-18


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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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