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

VariableCorrelationYearsSys. Score
Google searches for 'President phone number'r=0.8520yrs358
Google searches for 'headache remedies'r=0.8720yrs338
The number of aerospace engineers in Minnesotar=0.8820yrs338
The number of statisticians in Minnesotar=0.8620yrs336
The number of medical assistants in Minnesotar=0.8720yrs336
Wind power generated in Bulgariar=0.8718yrs336
Global revenue generated by Unilever Groupr=0.8816yrs334
China's Annual Passenger Car Productionr=0.8618yrs333
US Biomass Energy Productionr=0.8617yrs332
The number of customer service representatives in Minnesotar=0.8720yrs306
Global Net Sales for Walmartr=0.8517yrs300
Global sales revenue of elevators and escalatorsr=0.927yrs298
The number of industrial production managers in Minnesotar=0.8520yrs294
Global revenue from elevator and escalator salesr=0.927yrs293
Amazon's Annual Outbound Shipping Expenditure in Millionsr=0.8511yrs272
How insightful MinuteEarth YouTube video titles arer=0.8811yrs265
Google searches for 'how to immigrate to canada'r=0.8220yrs250
Annual Revenue of the Lego Groupr=0.8420yrs227
Gasoline pumped in Timor-Lester=0.8519yrs226
Gasoline pumped in Colombiar=0.6842yrs224
Popularity of the first name Hakeemr=0.7943yrs221
Popularity of the first name Malcolmr=0.7843yrs220
Popularity of the first name Stormr=0.7843yrs220
Consumption of dry whole milk productsr=0.7432yrs212
Chunghwa Telecom Co.'s stock price (CHT)r=0.7620yrs205
Bristol-Myers Squibb's stock price (BMY)r=0.7422yrs204
Customer satisfaction with gas stationsr=0.727yrs204
Global annual electricity generationr=0.8418yrs195
Petroluem consumption in Zimbabwer=0.6842yrs194
NASA's budget appropriationr=0.6144yrs192
Global revenue generated by Adidasr=0.8117yrs190
Revenue of US Broadcasting Industryr=0.8117yrs190
Total annual sales revenue of Ford Motors in Canadar=0.7819yrs188
Verizon Communications' stock price (VZ)r=0.7222yrs181
Hydopower energy generated in Togor=0.6442yrs180
The number of septic tank servicers and sewer pipe cleaners in Minnesotar=0.8520yrs180
Popularity of the first name Conorr=0.7143yrs179
Customer satisfaction with Motorolar=0.7218yrs178
How insightful SmarterEveryDay YouTube video titles arer=0.8117yrs176
Jet fuel used in Maltar=0.6542yrs169
Popularity of the first name Denzelr=0.743yrs168
The number of marketing managers in Minnesotar=0.8520yrs168
Google searches for 'how to make baby'r=0.8220yrs166
Gasoline pumped in Zimbabwer=0.6542yrs159
Popularity of the first name Katlinr=0.7635yrs158
The number of paralegals in Minnesotar=0.8518yrs158
Google searches for 'tummy ache'r=0.7820yrs150
Digital Realty Trust's stock price (DLR)r=0.7319yrs150
Popularity of the first name Kayceer=0.743yrs148
Liquefied petroleum gas used in Spainr=0.6343yrs147
The number of pharmacy technicians in Minnesotar=0.8420yrs147
Google searches for 'two day shipping'r=0.7820yrs140
Equity Residential's stock price (EQR)r=0.7122yrs140
Popularity of the first name Zachariahr=0.6943yrs136
The number of OSHA specialists in Minnesotar=0.8419yrs136
Google searches for 'scooby doo where are you'r=0.7820yrs130
CVS stock price (CVS)r=0.6822yrs128
The number of maintenance and repair workers in Minnesotar=0.8220yrs124
Popularity of the first name Stormyr=0.6843yrs124
Google searches for 'how to make baby'r=0.7720yrs118
Baidu's stock price (BIDU)r=0.7218yrs117
Wind power generated in Lithuaniar=0.8418yrs116
The number of machinists in Minnesotar=0.8220yrs114
Popularity of the first name Kodir=0.6843yrs114
The Walt Disney Company's stock price (DIS)r=0.6622yrs106
Popularity of the first name Arielr=0.6743yrs103
Biomass power generated in Solomon Islandsr=0.8316yrs103
Google searches for 'i have the flu'r=0.7220yrs100
Dominion Energy's stock price (D)r=0.6922yrs96
Popularity of the first name Emeraldr=0.6743yrs93
Petroluem consumption in Timor-Lester=0.8219yrs92
Google searches for 'i have a headache'r=0.7120yrs89
Biogen's stock price (BIIB)r=0.6922yrs86
Popularity of the first name Victoriar=0.6643yrs82
Google searches for 'i cant even'r=0.7120yrs79
Geothermal power generated in United Statesr=0.6242yrs78
Trip.com Group's stock price (TCOM)r=0.720yrs76
The number of biochemists and biophysicists in Minnesotar=0.8319yrs74
Popularity of the first name Ravenr=0.6643yrs72
Liquefied petroleum gas used in Maldivesr=0.818yrs68
Intel's stock price (INTC)r=0.6822yrs65
The number of registered nurses in Minnesotar=0.8318yrs64
Popularity of the first name Kelsear=0.6643yrs62
Liquefied petroleum gas used in Portugalr=0.6243yrs56
Popularity of the first name Dimitrir=0.6643yrs52
The number of biolmedical engineers in Minnesotar=0.8316yrs52
Gasoline pumped in Turkiyer=0.6143yrs44
The number of logisticians in Minnesotar=0.8218yrs42
Popularity of the first name Austenr=0.6543yrs40
Nuclear power generation in United Kingdomr=0.5942yrs33
The number of production, planning, and expediting clerks in Minnesotar=0.820yrs31
Popularity of the first name Najeer=0.6543yrs30
Petroluem consumption in Mauritaniar=0.6142yrs23
The number of restaurant cooks in Minnesotar=0.7920yrs20
Popularity of the first name Jameshar=0.6738yrs18
Fossil fuel use in Guinea-Bissaur=0.5842yrs12
The number of personal financial advisors in Minnesotar=0.7820yrs8
Popularity of the first name Marcelr=0.6343yrs7
Liquefied petroleum gas used in Zambiar=0.642yrs2
The number of veterinarians in Minnesotar=0.7820yrs-2
Nuclear power generation in Argentinar=0.5742yrs-10


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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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