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Data source: Environmental Protection Agency
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Air pollution in Springfield, Massachusetts correlates with...

VariableCorrelationYearsSys. Score
Number of edits to the Wikipedia article for Thanksgivingr=0.9216yrs394
The number of payroll and timekeeping clerks in Massachusettsr=0.9120yrs372
The number of file clerks in Massachusettsr=0.9120yrs372
United States music album salesr=0.9116yrs368
Liquefied petroleum gas used in Kosovor=0.9314yrs368
Arson in United Statesr=0.8738yrs362
Lloyds Banking Group's stock price (LYG)r=0.8822yrs360
Burglary rates in the USr=0.8538yrs359
GMO use in cottonr=0.9123yrs358
Remaining Forest Cover in the Brazilian Amazonr=0.8636yrs357
AIG's stock price (AIG)r=0.8622yrs357
Gasoline pumped in Latviar=0.8931yrs349
US birth rates of triplets or morer=0.8720yrs344
Petroluem consumption in Germanyr=0.8532yrs344
The number of CEOs in Massachusettsr=0.919yrs342
xkcd comics published about romancer=0.8817yrs341
U.S. intercountry adoptionsr=0.8723yrs340
Milk consumptionr=0.8932yrs340
The distance between Neptune and the Sunr=0.8644yrs340
The distance between Neptune and Earthr=0.8644yrs340
The distance between Neptune and the moonr=0.8644yrs340
Physical album shipment volume in the United Statesr=0.8624yrs339
Ice cream consumptionr=0.8832yrs338
Sherbet consumptionr=0.8832yrs338
Popularity of the first name Marcusr=0.8743yrs338
Popularity of the first name Darrenr=0.8743yrs338
Popularity of the first name Rener=0.8743yrs338
Google searches for 'snoop dog'r=0.8620yrs336
Cigarette Smoking Rate for US adultsr=0.8521yrs334
The number of postmasters in Massachusettsr=0.8820yrs308
Popularity of the first name Matthewr=0.8643yrs306
Cottage cheese consumptionr=0.8632yrs304
The number of prepress technicians and workers in Massachusettsr=0.8820yrs298
Popularity of the first name Josephr=0.8643yrs296
The number of psychiatric aides in Massachusettsr=0.8819yrs287
Popularity of the first name Danielr=0.8543yrs285
The number of telemarketers in Massachusettsr=0.8620yrs276
Popularity of the first name Jonathanr=0.8543yrs275
Portion of all US dairy skim-solids allocated to the production of frozen dairy productsr=0.8622yrs274
The number of conveyor operators in Massachusettsr=0.8719yrs266
Popularity of the first name Elizabethr=0.8543yrs265
Violent crime ratesr=0.7938yrs265
US average milk-fat content of cottage cheeser=0.8622yrs264
Popularity of the first name Aliciar=0.8543yrs255
The number of switchboard operators in Massachusettsr=0.8620yrs255
Portion of all US dairy skim-solids allocated to the production of fluid beverage milkr=0.8522yrs252
Viewership count for Days of Our Livesr=0.8242yrs250
Citigroup's stock price (C)r=0.8422yrs249
Popularity of the first name Jimmyr=0.8543yrs245
The number of postal service machine operators in Massachusettsr=0.8620yrs245
NASA's budget as a percentage of the total US Federal Budgetr=0.7644yrs245
US average milk-fat content of milk fat and skim solids byproduct fluid beverage milkr=0.8522yrs242
The number of boiler operators in Massachusettsr=0.8620yrs235
Google searches for 'learn spanish'r=0.8320yrs227
US Employment Rater=0.7433yrs225
The number of postal service mail carriers in Massachusettsr=0.8520yrs224
Motor vehicle theftsr=0.8438yrs222
Hydopower energy generated in Denmarkr=0.8442yrs220
Asthma prevalence in American childrenr=0.8317yrs217
Asthma attacks in American childrenr=0.7823yrs216
The number of paper goods machine setters, operators, and tenders in Massachusettsr=0.8520yrs214
Orange's stock price (ORAN)r=0.8122yrs214
Motor vehicle thefts in Massachusettsr=0.8338yrs211
Gasoline pumped in Francer=0.8343yrs207
The number of compensation and benefits managers in Massachusettsr=0.8619yrs204
The distance between Neptune and Mercuryr=0.8544yrs204
Barclays' stock price (BCS)r=0.822yrs203
Burglaries in Massachusettsr=0.8238yrs200
Gasoline pumped in Austriar=0.8243yrs196
Robberies in the USr=0.8238yrs190
Kerosene used globallyr=0.8242yrs184
Robberies in Massachusettsr=0.7938yrs175
Kerosene used in Thailandr=0.8142yrs173
Kerosene used in Perur=0.842yrs162
Kerosene used in United Statesr=0.7943yrs151
US production of cottage cheeser=0.8222yrs146
Kerosene used in Egyptr=0.7842yrs138
US milk fat used to produce fluid beverage milkr=0.8122yrs134
Popularity of the first name Joshuar=0.8543yrs130
Fossil fuel use in Sierra Leoner=0.7542yrs127
US dairy skim solids used to produce cottage cheeser=0.8222yrs124
Popularity of the first name Ryanr=0.8543yrs120
Kerosene used in Macaur=0.7742yrs117
Popularity of the first name Justinr=0.8543yrs110
Nuclear power generation in Germanyr=0.8231yrs106
Popularity of the first name Kathrynr=0.8543yrs100
Kerosene used in Argentinar=0.7642yrs96
Popularity of the first name Cynthiar=0.8543yrs90
Kerosene used in Brazilr=0.7642yrs86
The number of floral designers in Massachusettsr=0.8320yrs86
Popularity of the first name Tabithar=0.8543yrs80
Gasoline pumped in Bulgariar=0.7642yrs76
The number of sewing machine operators in Massachusettsr=0.8320yrs76
Popularity of the first name Stever=0.8543yrs70
Kerosene used in El Salvadorr=0.7642yrs66
The number of furniture finishers in Massachusettsr=0.8220yrs64
Popularity of the first name Diannar=0.8543yrs60
Kerosene used in Madagascarr=0.7642yrs56
Popularity of the first name Darinr=0.8543yrs50
Gasoline pumped in Norwayr=0.7543yrs45
Popularity of the first name Johnnar=0.8543yrs40


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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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