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Data source: Environmental Protection Agency
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Air pollution in Salem, Oregon correlates with...

VariableCorrelationYearsSys. Score
How provocative OverSimplified YouTube video titles arer=0.857yrs242
Kerosene used in French Polynesiar=0.7332yrs221
Jet fuel used in Armeniar=0.7130yrs216
Evaporated and condensed milk consumptionr=0.732yrs206
Popularity of the first name Shaniquar=0.7231yrs198
Popularity of the first name Tevinr=0.6343yrs197
Popularity of the first name Ieshar=0.6342yrs196
Nuclear power generation in Armeniar=0.726yrs184
Customer satisfaction with Appler=0.628yrs170
Fossil fuel use in Moldovar=0.6830yrs154
NASA's budget appropriationr=0.4944yrs154
Number of edits to the Wikipedia article for Charles IIIr=0.621yrs152
Total length of SciShow Space YouTube videosr=0.6510yrs150
Gasoline pumped in Belarusr=0.730yrs144
Customer satisfaction with All Othersr=0.5327yrs144
Yearly peak of NYSE composite indexr=0.7513yrs138
Customer satisfaction with Publixr=0.4827yrs136
Average number of comments on 3Blue1Brown YouTube videosr=0.639yrs136
Popularity of the first name Arielr=0.6143yrs134
Petroluem consumption in Moldovar=0.6930yrs133
Number of edits to the Wikipedia article for begging the questionr=0.4523yrs131
xkcd comics published about mathr=0.6117yrs130
Votes for Libertarian Senators in Oregonr=0.699yrs130
US production of cream productsr=0.747yrs124
Jet fuel used in Russiar=0.6930yrs123
Master's degrees awarded in Communications technologiesr=0.7510yrs122
US dairy skim solids used to produce cream productsr=0.737yrs121
Worldwide revenue from Harley Davidson motorcyclesr=0.6213yrs119
Number of Botox Injections Administered to Womenr=0.5323yrs118
Total viewership of the Aviva Premiership Rugby finalr=0.6114yrs118
Annual Email Spam Ratesr=0.5122yrs114
Jet fuel used in Eswatinir=0.642yrs112
Number of registered Yamaha motorcycles in the UKr=0.4922yrs112
Christmas Trees Sold in the USr=0.5316yrs112
Customer satisfaction with Coxr=0.4616yrs112
Annual US household spending on gasoliner=0.6223yrs112
Frank Lampard's appearances for the England national teamr=0.5318yrs110
Hollister retail store count worldwider=0.4723yrs110
Yearly Total Gross Income of US Farmsr=0.4623yrs110
Google searches for 'Johnny Depp'r=0.4720yrs108
The number of umpires and referees in Oregonr=0.4820yrs108
Annual US household spending on fresh milk and creamr=0.5923yrs108
Craig Bellamy's appearances in matches for the Wales national teamr=0.5216yrs107
The number of movies John Krasinski appeared inr=0.5323yrs106
Greece's annual import volumer=0.4620yrs105
The number of chefs and head cooks in Oregonr=0.4520yrs104
Grocery store spend in Oregonr=0.5524yrs101
Popularity of the 'what does the fox say' memer=0.5111yrs101
Annual US household spending on natural gasr=0.5423yrs100
xkcd comics published about philosophyr=0.4617yrs98
The number of movies Emma Watson appeared inr=0.4723yrs97
The number of movies Joey King appeared inr=0.5117yrs97
US hotel industry's revenue per available roomr=0.5314yrs96
Annual US household spending on prescription drugsr=0.5123yrs96
Popularity of the first name Denzelr=0.5543yrs95
Annual US household spending on dairy productsr=0.4923yrs92
How trendy Matt Parker's YouTube video titles arer=0.713yrs90
Food spending in Oregonr=0.4724yrs89
The number of computer network support specialists in Oregonr=0.4711yrs88
Customer satisfaction with T-Mobiler=-0.5317yrs88
Customer satisfaction with Macy'sr=-0.5216yrs86
US household spending on gasoliner=0.4523yrs86
US average milk-fat content of cream productsr=0.777yrs86
Trip.com Group's stock price (TCOM)r=-0.4920yrs85
Number of public school students in 3rd grader=-0.5733yrs84
Average length of SciShow Space YouTube videosr=0.5110yrs78
Electricity generation in Ukrainer=0.6330yrs77
Popularity of the first name Hillaryr=0.4943yrs76
Frank Lampard's Premier League goal tallyr=0.4721yrs74
Canned whole evaporated and condensed milk consumptionr=0.532yrs70
Petroluem consumption in Belarusr=0.6530yrs67
How 'hip and with it' Deep Look YouTube video titles arer=0.6810yrs64
The number of movies Channing Tatum appeared inr=0.4719yrs63
Cleansheets Achieved by Golden Glove Winners in the English Premier Leaguer=0.4718yrs58
Cottage cheese consumptionr=0.4832yrs58
Liquefied petroleum gas used in Kiribatir=0.6922yrs55
How clickbait-y Vihart's YouTube video titles arer=0.6315yrs52
Popularity of the first name Malcolmr=0.4843yrs50
Frozen yogurt consumptionr=0.4532yrs43
Petroluem consumption in Latviar=0.631yrs40
Popularity of the first name Ivetter=0.4843yrs40
How good Computerphile YouTube video titles arer=0.6311yrs38
Kerosene used in Turkmenistanr=0.630yrs30
Hispanic cheese consumptionr=0.4726yrs30
Popularity of the first name Shelbir=0.4643yrs26
US average milk-fat content of cream productsr=0.727yrs18
How provocative 3Blue1Brown YouTube video titles arer=0.659yrs18
Gasoline pumped in Moldovar=0.5930yrs18
Popularity of the first name Symoner=0.4643yrs16
Petroluem consumption in Ukrainer=0.5930yrs8
Popularity of the first name Chelsear=0.4543yrs5
Portion of all US dairy skim-solids allocated to the production of cream productsr=0.697yrs3
How fun 3Blue1Brown YouTube video titles arer=0.579yrs-4
Jet fuel used in Kazakhstanr=0.5730yrs-5
US average dairy skim-solid content of sour creamr=0.4822yrs-13
US average dairy skim-solid content of sour creamr=0.4822yrs-23
Kerosene used in Former Czechoslovakiar=0.749yrs-26
Portion of all US dairy skim-solids allocated to the production of sour creamr=0.4722yrs-34
Liquefied petroleum gas used in Former Czechoslovakiar=0.713yrs-38
Jet fuel used in Macaur=0.5927yrs-50
Petroluem consumption in Estoniar=0.5531yrs-62


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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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