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Data source: Environmental Protection Agency
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Air pollution in Napa, California correlates with...

VariableCorrelationYearsSys. Score
How nerdy 'Be Smart' science YouTube video titles arer=0.98yrs280
How insightful 'Be Smart' science YouTube video titles arer=0.878yrs246
Vulcan Materials Company's stock price (VMC)r=0.8219yrs213
Martin Marietta Materials' stock price (MLM)r=0.8219yrs213
NVIDIA's stock price (NVDA)r=0.7819yrs210
Average SAT score in critical readingr=0.6731yrs207
Automotive recalls issued by Mercedes-Benz USAr=0.5341yrs176
Automotive recalls issued by Volkswagen Group of Americar=0.5141yrs173
Average length of LEMMiNO YouTube videosr=0.799yrs170
Average SAT score in writingr=0.7615yrs170
The number of hazardous materials removal workers in Californiar=0.7818yrs166
Wind power generated in Luxembourgr=0.6824yrs158
Wind power generated in Jordanr=0.631yrs154
Applied Materials' stock price (AMAT)r=0.7519yrs152
Number of times 22 was a winning Mega Millions numberr=0.6119yrs150
University Lecturer salaries in the USr=0.6312yrs150
Google searches for 'elon musk'r=0.8111yrs150
Renewable energy production in Belarusr=0.5929yrs150
Season wins for the Los Angeles Ramsr=0.4841yrs149
Automotive recalls issued by Keystone RV Companyr=0.5623yrs148
Number of times 17 was a winning Mega Millions numberr=0.5818yrs144
Customer satisfaction with American Airlinesr=0.5327yrs144
Powerball lottery numbersr=0.6211yrs143
Annual US household spending on fish and seafoodr=0.7421yrs143
Prologis' stock price (PLD)r=0.7519yrs142
Votes for Democratic Senators in Californiar=0.779yrs142
The average number of likes on 'Be Smart' science YouTube videosr=0.88yrs140
Customer satisfaction with AT&Tr=0.5717yrs140
Popularity of the 'mocking spongebob' memer=0.6815yrs140
Popularity of the 'expanding brain' memer=0.6715yrs139
Google searches for 'flights to Antarctica'r=0.5317yrs138
Google searches for 'who is elon musk'r=0.6916yrs137
Annual US household spending on housekeeping suppliesr=0.721yrs137
US household spending on other household productsr=0.721yrs137
Popularity of the 'distracted boyfriend' memer=0.6515yrs136
Age of Miss Earth Peagant winnerr=0.6220yrs134
Customer satisfaction with CVSr=0.5416yrs134
Annual US household spending on other household productsr=0.6821yrs134
Votes for Democratic Senators in Californiar=0.729yrs134
The number of medical equipment repairers in Californiar=0.6618yrs133
The number of nurse anesthetists in Californiar=0.729yrs133
US Sales of Artificial Christmas Treesr=0.6715yrs132
Customer satisfaction with T-Mobiler=0.5216yrs132
Patents granted to Toyotar=0.710yrs131
Global iPod Salesr=0.699yrs130
Paypal's Number of Active Registered User Accountsr=0.6811yrs129
Lam Research's stock price (LRCX)r=0.7119yrs126
The average number of likes on Tom Scott's YouTube videosr=0.7412yrs125
Solar power generated in Chinar=0.5731yrs119
The PNC Financial Services Group's stock price (PNC)r=0.7119yrs116
Average length of Computerphile YouTube videosr=0.748yrs111
Solar power generated in South Korear=0.5631yrs108
JPMorgan Chase & Co.'s stock price (JPM)r=0.719yrs105
Google searches for 'takeout near me'r=0.6616yrs102
Average number of comments on Tom Scott's YouTube videosr=0.7112yrs100
The number of nurse practitioners in Californiar=0.79yrs100
Biomass power generated in Lebanonr=0.89yrs96
The Goldman Sachs Group's stock price (GS)r=0.719yrs95
Google searches for 'roblox'r=0.6713yrs91
Total likes of Tom Scott's YouTube videosr=0.7112yrs90
The number of social workers in Californiar=0.6811yrs89
Biomass power generated in Moroccor=0.89yrs86
Microchip Technology's stock price (MCHP)r=0.6919yrs84
The average number of likes on LEMMiNO YouTube videosr=0.739yrs80
Google searches for 'adopt a dog'r=0.6417yrs80
Liquefied petroleum gas used in Kazakhstanr=0.5829yrs76
Total comments on Tom Scott's YouTube videosr=0.712yrs69
Google searches for 'avocado toast'r=0.6513yrs68
T-Mobile Us' stock price (TMUS)r=0.7613yrs63
Solar power generated in American Samoar=0.779yrs62
Average length of minutephysics YouTube videosr=0.7110yrs58
Google searches for '3Blue1Brown'r=0.6414yrs58
Charter Communications' stock price (CHTR)r=0.7811yrs52
Solar power generated in Nepalr=0.7314yrs51
Total comments on Mark Rober YouTube videosr=0.7110yrs48
Geothermal power generated in Francer=0.7510yrs40
AT&T Inc.'s stock price (T)r=0.6919yrs38
Total length of Mark Rober YouTube videosr=0.710yrs37
Biomass power generated in Philippinesr=0.7312yrs29
Lockheed Martin's stock price (LMT)r=0.6719yrs28
Total length of Steve Mould's YouTube videosr=0.6812yrs26
ON Semiconductor's stock price (ON)r=0.717yrs18
Wind power generated in Somaliar=0.749yrs18
Average length of Tom Scott's YouTube videosr=0.6712yrs14
Electronic Arts' stock price (EA)r=0.6919yrs8
Renewable energy production in Barbadosr=0.7111yrs5
Average length of Mark Rober YouTube videosr=0.6810yrs4
The Allstate Corporation's stock price (ALL)r=0.6919yrs-2
Solar power generated in Barbadosr=0.7111yrs-5
Average number of comments on LEMMiNO YouTube videosr=0.679yrs-8
The Charles Schwab Corporation's stock price (SCHW)r=0.6819yrs-13
Solar power generated in Pakistanr=0.7111yrs-15
Total likes of The Game Theorists YouTube videosr=0.6512yrs-18
CRH plc's stock price (CRH)r=0.6819yrs-23
Solar power generated in Haitir=0.729yrs-26
Total length of 3Blue1Brown YouTube videosr=0.766yrs-28
Sysco's stock price (SYY)r=0.6819yrs-33
Solar power generated in Uruguayr=0.729yrs-36
Total likes of Mark Rober YouTube videosr=0.6610yrs-39
Solar power generated in Senegalr=0.6321yrs-47
Biomass power generated in Laosr=0.718yrs-58


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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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