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Data source: Environmental Protection Agency
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Air quality in Cleveland correlates with...

VariableCorrelationYearsSys. Score
Wind power generated in Venezuelar=0.9710yrs403
Gasoline pumped in Sao Tome and Principer=0.8542yrs354
Electricity generation in Kazakhstanr=0.8630yrs346
Popularity of the first name Emersonr=0.8543yrs335
GMO use in cornr=0.8624yrs325
Automotive recalls for issues with the Electrical Systemr=0.7843yrs261
Average milk produced per cow in the USr=0.7543yrs260
Total number of automotive recallsr=0.7643yrs260
Automotive recalls issued by BMW of North Americar=0.743yrs254
Automotive recalls for issues with the Power Trainr=0.7143yrs250
Automotive recalls issued by Volkswagen Group of Americar=0.6843yrs250
Automotive recalls issued by Mercedes-Benz USAr=0.6843yrs250
Automotive recalls issued by Hyundai Motor Americar=0.737yrs248
Customer satisfaction with Southwest Airlinesr=0.7828yrs248
Total number of live births in Australiar=0.8143yrs246
Hotdogs consumed by Nathan's Hot Dog Eating Competition Championr=0.7643yrs244
Patents granted in the USr=0.7641yrs244
Automotive recalls issued by Nissan North Americar=0.6443yrs244
Customer satisfaction with Dillard'sr=0.7627yrs244
Automotive recalls issued by Chryslerr=0.6243yrs242
Patents granted in the USr=0.7641yrs240
USA Populationr=0.7643yrs238
US Annual Tax Revenuer=0.7642yrs237
Automotive recalls for issues with Exterior Lightingr=0.6243yrs237
Budget for largest movie productionr=0.7343yrs236
Annual Revenue of Walt Disney Companyr=0.7832yrs233
Total budget of Marvel comic-based films releasedr=0.7435yrs230
U.S. direct investment abroadr=0.8422yrs230
Inflation in the USr=0.7931yrs230
US milk fat used to produce yogurtr=0.8522yrs230
Popularity of the first name Henryr=0.8543yrs230
Popularity of the first name Milanr=0.8543yrs230
Total Sales at Clothing and Accessories Storesr=0.7631yrs229
US milk fat used to produce whey products (net)r=0.8422yrs229
Number of firearms manufactured in the USr=0.7436yrs228
Number of Lawyers in the United Statesr=0.734yrs228
The distance between Neptune and Uranusr=0.7744yrs222
Renewable energy production in Bhutanr=0.8442yrs220
UEFA European Cup and Champions League Top Scorer's Goal Countr=0.6443yrs220
Average temperature in Sydneyr=0.6343yrs220
GMO use in cornr=0.8424yrs217
GMO use in corn grown in Ohior=0.8324yrs216
Hydopower energy generated in Bhutanr=0.8442yrs210
Electricity generation in Equatorial Guinear=0.8442yrs200
Popularity of the first name Violetr=0.8543yrs200
US milk fat used to produce sour creamr=0.8422yrs199
Fossil fuel use in Equatorial Guinear=0.8442yrs190
US dairy skim solids used to produce yogurt, nonfrozenr=0.8422yrs188
Popularity of the first name Evelynr=0.8443yrs188
Biomass power generated in Italyr=0.8342yrs179
US dairy skim solids used to produce sour creamr=0.8422yrs178
Popularity of the first name Ameliar=0.8443yrs178
Intel Corporation's annual revenuer=0.7336yrs176
US Shoe Store Salesr=0.7730yrs171
Biomass power generated in Nicaraguar=0.8342yrs169
Popularity of the first name Charlotter=0.8443yrs168
Gender pay gap in the U.S.r=0.7332yrs166
US production of cheese (other than cottage cheese)r=0.8222yrs166
Biomass power generated in Polandr=0.8342yrs159
Economic output of Washington metro arear=0.8121yrs159
Popularity of the first name Lucyr=0.8443yrs158
US production of yogurt, nonfrozenr=0.8222yrs156
Christmas Price Index in the United Statesr=0.7531yrs154
Electricity generation in Qatarr=0.8342yrs149
Global plane crashesr=0.6743yrs149
Popularity of the first name Charlier=0.8443yrs148
US milk fat used to produce cheese (excluding cottage cheese)r=0.8222yrs146
Adidas Group's Global Net Salesr=0.823yrs141
Liquefied petroleum gas used in Guinea-Bissaur=0.8542yrs139
Popularity of the first name Grahamr=0.8443yrs138
Hollister retail store count worldwider=0.7823yrs136
US production of sour creamr=0.8122yrs134
Number of households headed by single fathers in the United Statesr=0.7132yrs131
Electricity generation in Bangladeshr=0.8242yrs128
Popularity of the first name Elliotr=0.8443yrs128
US dairy skim solids used to produce cheese (other than cottage cheese)r=0.8222yrs124
Fossil fuel use in Bangladeshr=0.8242yrs118
Popularity of the first name Geneviever=0.8443yrs118
US production of butterr=0.822yrs113
Biomass power generated in Brazilr=0.8242yrs108
Popularity of the first name Sawyerr=0.8443yrs108
US milk fat used to produce butterr=0.822yrs103
Fossil fuel use in Burkina Fasor=0.8242yrs98
Popularity of the first name Lenar=0.8443yrs98
US dairy skim solids used to produce butterr=0.822yrs92
Renewable energy production in Congo-Kinshasar=0.8242yrs88
Popularity of the first name Santiagor=0.8443yrs88
Hydopower energy generated in Congo-Kinshasar=0.8242yrs78
Popularity of the first name Luciar=0.8443yrs78
Butter consumptionr=0.7832yrs78
Geothermal power generated in Icelandr=0.8242yrs68
Popularity of the first name Hudsonr=0.8443yrs68
Hispanic cheese consumptionr=0.8226yrs68
Electricity generation in Jordanr=0.8242yrs58
Popularity of the first name Scarlettr=0.8443yrs58
Italian-type cheese consumptionr=0.827yrs56
Popularity of the first name Elianar=0.8443yrs48
Muenster cheese consumptionr=0.827yrs46
Popularity of the first name Beatricer=0.8443yrs38
Yogurt consumptionr=0.7532yrs33
US Bottled Water Consumption per Personr=0.8424yrs27


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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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