CorrelateAI › Pairs
Arctic Sea Ice Extent (September) vs US Resident Patent Applications
Arctic Sea Ice Extent (September) and US Resident Patent Applications correlate at r = -0.91 over 42 years (1980–2021), p < 0.0001. With the time trend removed, r = -0.43. Interpret with caution.
Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from -0.91 to -0.43 once the trend is removed.
- Pearson r
- -0.91
- p-value
- < 0.0001
- Years compared (n)
- 42 (1980–2021)
- 95% confidence interval
- -0.95 to -0.84
- Correlation with the time trend removed
- -0.43
Sources
- Arctic Sea Ice Extent (September) (million km²): NSIDC. Mean Arctic sea ice extent in September, the yearly minimum (NSIDC Sea Ice Index).
- US Resident Patent Applications (applications): World Bank. US Resident Patent Applications (World Bank indicator IP.PAT.RESD).
Related pairs
- US Mobile Subscriptions vs US Resident Patent Applications (r = +0.99)
- US Adult Obesity vs US Resident Patent Applications (r = +0.98)
- US Resident Patent Applications vs US Population (r = +0.98)
- Atmospheric CO₂ (Mauna Loa) vs US Resident Patent Applications (r = +0.97)
- US GDP per Capita vs US Resident Patent Applications (r = +0.97)
- US GDP (current US$) vs US Resident Patent Applications (r = +0.97)
Correlation does not imply causation. How the verdict is worked out.