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Data source: Environmental Protection Agency
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Air quality in Indianapolis, Indiana correlates with...

VariableCorrelationYearsHas img?
Delta Airlines' stock price (DAL)r=0.916yrsNo
Google searches for 'who is donald trump'r=0.7320yrsNo


Air quality in Indianapolis, Indiana also correlates with...

VariableCorrelationYearsSys. Score
Biomass power generated in Latviar=0.921yrs374
The number of surgical technologists in Indianar=0.920yrs371
Solar power generated in Ecuadorr=0.9117yrs371
Altria Group's stock price (MO)r=0.922yrs363
Wells Fargo & Company's stock price (WFC)r=0.8922yrs362
Biomass power generated in Mozambiquer=0.8922yrs343
The number of university biological science teachers in Indianar=0.8920yrs340
The number of consultants in Indianar=0.8720yrs336
Dominion Energy's stock price (D)r=0.8922yrs332
Total length of Tom Scott's YouTube videosr=0.8715yrs328
US Bottled Water Consumption per Personr=0.8724yrs326
US household spending on health insurancer=0.923yrs324
Annual US household spending on health insurancer=0.8923yrs322
3M Company's stock price (MMM)r=0.8822yrs320
US per-person consumption of bottled waterr=0.8724yrs320
Google searches for 'cat memes'r=0.8620yrs320
Annual US household spending on healthcarer=0.8723yrs320
US household spending on healthcarer=0.8723yrs320
Annual US household spending on rented dwellingsr=0.8623yrs318
Associates degrees awarded in Theologyr=0.9211yrs316
Biomass power generated in Nigeriar=0.8722yrs310
U.S. Bancorp's stock price (USB)r=0.8722yrs308
The number of customer service representatives in Indianar=0.8720yrs306
The average number of likes on CGP Grey YouTube videosr=0.8713yrs306
Biomass power generated in Lithuaniar=0.8721yrs299
Gilead Sciences' stock price (GILD)r=0.8622yrs297
Bachelor's degrees awarded in journalismr=0.9110yrs296
The number of insurance sales agents in Indianar=0.8520yrs294
Solar power generated in Arubar=0.9212yrs288
Ryanair Holdings' stock price (RYAAY)r=0.8622yrs287
Total views on Tom Scott's YouTube videosr=0.8615yrs286
Solar power generated in Kiribatir=0.8917yrs278
Amazon's shipping revenue in millions of dollarsr=0.8911yrs278
Biogen's stock price (BIIB)r=0.8522yrs276
Solar power generated in Romaniar=0.9113yrs267
Wind power generated in Tunisiar=0.8522yrs257
Number of times 14 was a winning Mega Millions numberr=0.8222yrs249
Solar power generated in North Macedoniar=0.9211yrs246
Liquefied petroleum gas used in Samoar=0.8622yrs236
Popularity of the 'starter pack' memer=0.8518yrs234
U.S. direct investment abroadr=0.8422yrs230
Total employee count at Continental AGr=0.8224yrs230
US production of cheese (other than cottage cheese)r=0.8422yrs229
US milk fat used to produce cheese (excluding cottage cheese)r=0.8422yrs229
Total Revenue of the NFL Teamsr=0.8520yrs228
US dairy skim solids used to produce cheese (other than cottage cheese)r=0.8422yrs228
Google searches for 'two day shipping'r=0.8420yrs228
Google searches for 'smol'r=0.8420yrs228
Adidas Group's Global Net Salesr=0.8323yrs226
US Wind Power Generation Capacityr=0.8123yrs226
Wind power generated in Philippinesr=0.8717yrs225
Popularity of the first name Hakeemr=0.7643yrs216
GMO use in cottonr=0.8323yrs212
GMO use in cornr=0.824yrs211
Popularity of the first name Forrestr=0.7243yrs210
Popularity of the first name Chanelr=0.7243yrs210
Annual US household spending on telephone servicesr=0.8423yrs210
Annual US household spending on small appliancesr=0.8323yrs208
Annual US household spending on educationr=0.8421yrs208
US household spending on rented dwellingsr=0.8323yrs208
Number of times 12 was a winning Mega Millions numberr=0.7422yrs207
Annual US household spending on laundry and cleaning suppliesr=0.8223yrs207
US Tree Nut Consumption per Personr=0.8122yrs204
Google searches for 'spurious correlations'r=0.8320yrs197
US dairy skim solids used to produce dry milk productsr=0.7922yrs190
Solar power generated in Guinear=0.8913yrs184
Popularity of the first name Merandar=0.7734yrs179
The number of university engineering teachers in Indianar=0.8420yrs177
Google searches for 'flights to Antarctica'r=0.7820yrs174
Consumption of dry whole milk productsr=0.7432yrs172
Popularity of the first name Malcolmr=0.743yrs168
The number of massage therapists in Indianar=0.8320yrs166
CVS stock price (CVS)r=0.8422yrs162
Portion of all US dairy skim-solids allocated to the production of cheese (other than cottage cheese)r=0.8422yrs158
The number of restaurant cooks in Indianar=0.8320yrs156
Popularity of the first name Stefanr=0.6943yrs156
Annual US household spending on fresh vegetablesr=0.8123yrs156
Annual US household spending on foodr=0.823yrs149
The Walt Disney Company's stock price (DIS)r=0.822yrs148
US average milk-fat content of cheese (other than cottage cheese)r=0.8422yrs146
Popularity of the first name Brittnir=0.7433yrs144
Annual US household spending on poultryr=0.823yrs144
Annual US household spending on fresh fruitsr=0.823yrs139
Kimberly-Clark's stock price (KMB)r=0.8322yrs138
US average dairy skim-solid content of yogurt, nonfrozenr=0.8422yrs136
Royal Caribbean Cruises' stock price (RCL)r=0.8322yrs128
Kellogg's stock price (K)r=0.8322yrs118
Prudential's stock price (PUK)r=0.8222yrs106
Biomass power generated in Indiar=0.8323yrs100
Edison International's stock price (EIX)r=0.8222yrs96
Biomass power generated in Ugandar=0.8422yrs90
Kroger's stock price (KR)r=0.822yrs84
Geothermal power generated in Germanyr=0.8518yrs78
Simon Property Group's stock price (SPG)r=0.822yrs73
Biomass power generated in Papua New Guinear=0.8222yrs68
Jet fuel used in Bulgariar=0.7733yrs58
Petroluem consumption in Micronesiar=0.8422yrs48
Wind power generated in Moroccor=0.8122yrs36
Comcast's stock price (CMCSA)r=0.7922yrs32
Colgate-Palmolive Company's stock price (CL)r=0.7922yrs22


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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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