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US CO₂ Emissions per Capita vs US Resident Patent Applications
US CO₂ Emissions per Capita and US Resident Patent Applications correlate at r = -0.78 over 42 years (1980–2021), p < 0.0001. With the time trend removed, r = -0.02. Likely spurious (shared time trend).
Verdict: Likely spurious (shared time trend). Both series mostly just trend over time. After removing that trend the correlation collapses to -0.02 — the relationship is probably coincidental, not causal.
- Pearson r
- -0.78
- p-value
- < 0.0001
- Years compared (n)
- 42 (1980–2021)
- 95% confidence interval
- -0.87 to -0.62
- Correlation with the time trend removed
- -0.02
Sources
- US CO₂ Emissions per Capita (tonnes): World Bank. US CO₂ Emissions per Capita (World Bank indicator EN.GHG.CO2.PC.CE.AR5).
- 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.