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Data source: Environmental Protection Agency
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Air pollution in Johnstown, Pennsylvania correlates with...

VariableCorrelationYearsSys. Score
New York Times Fiction Best Sellersr=0.7535yrs233
The price of goldr=0.7435yrs232
Kerosene used in Ethiopiar=0.7342yrs231
Hydopower energy generated in Polandr=0.742yrs230
Global shipwrecks r=0.7135yrs228
Jet fuel used in Congo-Brazzaviller=0.7142yrs228
London Gold Pricesr=0.7533yrs224
US bank failuresr=0.7324yrs214
Popularity of the first name Jeremiahr=0.7243yrs210
Popularity of the first name Tysonr=0.7143yrs209
Popularity of the first name Annabelr=0.6943yrs206
The distance between Neptune and Saturnr=0.6244yrs200
The distance between Uranus and Saturnr=0.6144yrs198
Petroluem consumption in Venezuelar=0.7142yrs198
Number of edits to the Wikipedia article for bromancer=0.7519yrs187
Asthma prevalence in American childrenr=0.7617yrs186
Jet fuel used in Cameroonr=0.742yrs186
The number of cooks, institution and cafeteria in Pennsylvaniar=0.7620yrs185
Number of edits to the Wikipedia article for O.J. Simpsonr=0.7418yrs184
Total Points scored by the New England Patriots in the NFL seasonr=0.5743yrs180
Annual count of part-time employees in the United Statesr=0.6333yrs178
Automotive recalls for issues with the Engine And Engine Coolingr=0.5643yrs178
Gasoline pumped in Venezuelar=0.6942yrs175
Popularity of the first name Leahr=0.6843yrs174
Automotive recalls for issues with the Fuel System, Otherr=0.5341yrs172
Divorce rates in the United Kingdomr=-0.7533yrs170
Ticket sales for Philadelphia Phillies gamesr=0.5140yrs169
Google searches for 'xkcd'r=0.7917yrs168
The number of movies Timothy Spall appeared inr=0.5744yrs168
Number of Automotive Franchise Establishments in the USr=-0.998yrs165
Popularity of the first name Braydenr=0.6843yrs164
United States' Fruit Juice Export Volumer=0.813yrs164
Cenovus Energy's stock price (CVE)r=0.7614yrs164
Electricity generation in Yemenr=0.6642yrs164
US Motorcycle Manufacturing Industry Revenuer=-0.9312yrs163
The number of network systems administrators in Pennsylvaniar=0.7518yrs162
Average number of comments on Computerphile YouTube videosr=0.7211yrs161
Google searches for 'download firefox'r=0.7220yrs160
Average length of Tom Scott's YouTube videosr=-0.8715yrs159
Total Digital Music Single Downloadsr=0.7219yrs158
UFO sightings in Pennsylvaniar=0.5242yrs158
Google searches for 'facebook'r=0.7218yrs158
The number of aircraft mechanics in Pennsylvaniar=0.7120yrs158
Violent crime ratesr=-0.6138yrs158
Total likes of Tom Scott's YouTube videosr=-0.8515yrs157
Asthma prevalence in American childrenr=0.6617yrs156
Hot days in Perthr=0.5443yrs156
Customer satisfaction with USATODAY.comr=0.6520yrs155
Popularity of the first name Rylanr=0.6843yrs154
Number of Miss World delegatesr=0.5442yrs154
Customer satisfaction with Dollar Generalr=0.6814yrs154
Number of Earthquakes in the United Statesr=0.6723yrs152
Kerosene used in Francer=0.6643yrs152
Woodside Energy Group's stock price (WDS)r=0.6615yrs150
Asthma prevalence in American childrenr=0.6117yrs149
The number of movies Rooney Mara appeared inr=0.7518yrs149
Asthma prevalence in American childrenr=0.617yrs148
Popularity of the 'fidget spinner' memer=0.777yrs146
Popularity of the first name Kyleighr=0.6743yrs143
Petroluem consumption in Togor=0.6742yrs142
Popularity of the first name Cayleer=0.6743yrs133
Fossil fuel use in Norwayr=0.6442yrs130
The number of music directors and composers in Pennsylvaniar=0.720yrs126
Total length of Steve Mould's YouTube videosr=-0.8415yrs126
Popularity of the first name Jaydenr=0.6643yrs122
Petroluem consumption in Kuwaitr=0.6642yrs120
How fun Extra History YouTube video titles arer=0.8312yrs114
Popularity of the first name Londonr=0.6643yrs112
Petroluem consumption in Argentinar=0.6542yrs109
Number of Las Vegas Hotel Room Check-Insr=0.634yrs108
The number of executive administrative assistants in Pennsylvaniar=0.7913yrs108
The average number of likes on Computerphile YouTube videosr=0.6711yrs104
Popularity of the first name Brooklynnr=0.6643yrs102
Number of internet usersr=0.6624yrs102
Petroluem consumption in Trinidad and Tobagor=0.6542yrs99
NFL broadcast TV viewershipr=0.720yrs96
Popularity of the first name Kellenr=0.6643yrs92
Total Number of Successful Mount Everest Climbsr=0.5932yrs89
The average number of likes on MinuteEarth YouTube videosr=0.6411yrs89
Gasoline pumped in Belizer=0.6342yrs86
Popularity of the first name Lillyr=0.6643yrs82
Bankruptcies in Californiar=0.8511yrs82
How nerdy Tom Scott's YouTube video titles arer=0.7715yrs78
Super Bowl TV viewershipr=0.5633yrs77
Petroluem consumption in Uruguayr=0.6342yrs76
Popularity of the first name Madisynr=0.737yrs72
Public Library Website Visits in the UKr=0.828yrs68
Total comments on minutephysics YouTube videosr=0.5913yrs64
Popularity of the first name Aubrier=0.6643yrs62
Pirate attacks globallyr=0.7514yrs62
Total likes of Computerphile YouTube videosr=0.6111yrs54
Popularity of the first name Sophiar=0.6543yrs50
Popularity of the first name Peytonr=0.6543yrs40
Fossil fuel use in Ecuadorr=0.6242yrs38
Popularity of the first name Kailynr=0.6642yrs30
Jet fuel used in Angolar=0.6242yrs24
Popularity of the first name Annabeller=0.6543yrs20
Gasoline pumped in Afghanistanr=0.6142yrs13
Popularity of the first name Jayceer=0.6543yrs10
Electricity generation in British Virgin Islandsr=0.5842yrs2
Fossil fuel use in British Virgin Islandsr=0.5842yrs-8


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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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