Two series that should have nothing to do with each other
Surprise me
GLOVIZ picked Daily mean temperature Sao Paulo from NASA POWER and KRW per EUR from European Central Bank, paired them on time, and found a correlation of -0.441 over 63 matched observations. Two different institutions, two different measurement programmes, no shared mechanism. That is the point: with a thousand series, coincidences are cheap.
Daily mean temperature Sao Paulo and KRW per EURNASA POWER against European Central Bank · Insights opens on load
Sources: NASA POWER, European Central Bank
The same two, plotted against each other63 matched points · trend line open
Sources: NASA POWER, European Central Bank