Top variables that correlate with Air quality in Birmingham

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

Variable	Correlation	Years	Sys. Score
Biomass power generated in India	r=0.96	23yrs	414
Hydopower energy generated in Greenland	r=0.95	23yrs	413
Wind power generated in Czechia	r=0.95	22yrs	412
US dairy skim solids used to produce yogurt, nonfrozen	r=0.95	22yrs	409
Fomento Econ's stock price (FMX)	r=0.92	22yrs	396
Enbridge's stock price (ENB)	r=0.9	22yrs	393
US household spending on rented dwellings	r=0.96	23yrs	393
Biomass power generated in Zambia	r=0.95	22yrs	382
U.S. direct investment abroad	r=0.93	22yrs	379
US milk fat used to produce yogurt	r=0.94	22yrs	379
Google searches for 'how to make baby'	r=0.94	20yrs	378
Google searches for 'headache remedies'	r=0.92	20yrs	376
Google searches for 'scooby doo where are you'	r=0.92	20yrs	376
The number of customer service representatives in Alabama	r=0.93	20yrs	376
China's Annual Passenger Car Production	r=0.94	18yrs	375
US production of butter	r=0.91	22yrs	374
The number of insurance claims adjusters in Alabama	r=0.91	20yrs	374
Number of Public Library Members in the UK	r=0.93	12yrs	369
Wind power generated in Bulgaria	r=0.95	18yrs	368
GMO use in corn	r=0.95	24yrs	368
GMO use in cotton	r=0.93	23yrs	362
Dominion Energy's stock price (D)	r=0.88	22yrs	360
US household spending on fresh fruits	r=0.94	23yrs	360
US household spending on healthcare	r=0.94	23yrs	360
Annual US household spending on telephone services	r=0.93	23yrs	358
US household spending on health insurance	r=0.93	23yrs	358
How professional-sounding SmarterEveryDay YouTube video titles are	r=0.92	17yrs	357
Gasoline pumped in Timor-Leste	r=0.95	19yrs	356
Annual US household spending on rented dwellings	r=0.9	23yrs	354
Annual US household spending on health insurance	r=0.9	23yrs	354
Total employee count at Continental AG	r=0.89	24yrs	345
US production of whey products (net)	r=0.91	22yrs	344
Google searches for 'how to make baby'	r=0.91	20yrs	344
Ticket prices at North American movie theaters	r=0.89	22yrs	344
Yearly Total Gross Income of US Farms	r=0.87	23yrs	341
US Wind Power Generation Capacity	r=0.88	23yrs	341
The number of restaurant cooks in Alabama	r=0.89	20yrs	340
Popularity of the 'red pill blue pill' meme	r=0.85	18yrs	339
Economic output of Washington metro area	r=0.87	21yrs	338
Adidas Group's Global Net Sales	r=0.88	23yrs	338
UK Service Retail Price Index	r=0.9	19yrs	338
Global Net Sales for Walmart	r=0.9	17yrs	338
Global Apple iPhone Sales in Q3	r=0.92	12yrs	336
Total annual sales revenue of Ford Motors in Canada	r=0.86	19yrs	336
Total Revenue of the NFL Teams	r=0.87	20yrs	336
US production of sour cream	r=0.91	22yrs	334
Colgate-Palmolive Company's stock price (CL)	r=0.87	22yrs	328
How insightful SmarterEveryDay YouTube video titles are	r=0.9	17yrs	324
US milk fat used to produce butter	r=0.91	22yrs	324
Annual US household spending on fresh fruits	r=0.89	23yrs	322
Annual US household spending on healthcare	r=0.89	23yrs	322
How good SmarterEveryDay YouTube video titles are	r=0.89	17yrs	322
GMO use in cotton in Alabama	r=0.89	18yrs	320
Annual US household spending on eggs	r=0.87	23yrs	320
Wind power generated in Falkland Islands	r=0.94	22yrs	320
Google searches for 'i have the flu'	r=0.87	20yrs	318
Cognizant Technology Solutions' stock price (CTSH)	r=0.86	22yrs	317
US production of dry milk products (net)	r=0.9	22yrs	313
Biomass power generated in Papua New Guinea	r=0.94	22yrs	310
The number of database administrators in Alabama	r=0.89	18yrs	308
Google searches for 'i cant even'	r=0.85	20yrs	305
Chunghwa Telecom Co.'s stock price (CHT)	r=0.86	20yrs	305
US dairy skim solids used to produce butter	r=0.91	22yrs	303
Wind power generated in Taiwan	r=0.94	22yrs	300
The number of industrial engineers in Alabama	r=0.88	20yrs	298
US dairy skim solids used to produce whey products	r=0.91	22yrs	293
Biomass power generated in Rwanda	r=0.93	22yrs	289
The number of registered nurses in Alabama	r=0.89	18yrs	288
US Biomass Energy Production	r=0.89	17yrs	286
US dairy skim solids used to produce cheese (other than cottage cheese)	r=0.9	22yrs	282
Google searches for 'tummy ache'	r=0.88	20yrs	280
Annual Revenue of the Lego Group	r=0.85	20yrs	279
The number of occupational therapists in Alabama	r=0.88	20yrs	278
Wind power generated in Tunisia	r=0.91	22yrs	276
Global annual electricity generation	r=0.85	18yrs	272
US dairy skim solids used to produce dry milk products	r=0.9	22yrs	272
The number of sonographers in Alabama	r=0.87	20yrs	268
Biomass power generated in Lithuania	r=0.91	21yrs	265
Google searches for 'two day shipping'	r=0.85	20yrs	265
The number of medical equipment repairers in Alabama	r=0.88	20yrs	258
Jet fuel used in Sao Tome and Principe	r=0.9	22yrs	252
US per-person consumption of bottled water	r=0.86	24yrs	249
US average dairy skim-solid content of yogurt, nonfrozen	r=0.95	22yrs	248
Petroluem consumption in Timor-Leste	r=0.91	19yrs	240
US average milk-fat content of yogurt, nonfrozen	r=0.93	22yrs	234
US production of cheese (other than cottage cheese)	r=0.9	22yrs	213
US milk fat used to produce cheese (excluding cottage cheese)	r=0.9	22yrs	203
Biomass power generated in Nigeria	r=0.89	22yrs	203
US Bottled Water Consumption per Person	r=0.87	24yrs	196
CVS stock price (CVS)	r=0.85	22yrs	194
Biomass power generated in Mozambique	r=0.88	22yrs	192
US production of yogurt, nonfrozen	r=0.88	22yrs	190
Biomass power generated in Slovenia	r=0.87	23yrs	181
Simon Property Group's stock price (SPG)	r=0.85	22yrs	180
US milk fat used to produce whey products (net)	r=0.88	22yrs	180
Biomass power generated in Latvia	r=0.88	21yrs	170
US milk fat used to produce sour cream	r=0.85	22yrs	166
Biomass power generated in Malawi	r=0.87	22yrs	160
US dairy skim solids used to produce evaporated and condensed milk	r=0.86	22yrs	156
Hydopower energy generated in Sierra Leone	r=0.87	22yrs	150
US dairy skim solids used to produce sour cream	r=0.85	22yrs	144

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^{What is Sys. Score?} 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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