Today, I checked the temperature data from Durban, a city in the South African Province of KwaZulu-Natal.

Looking at the data from the GHCN V2 dataset, we can see the city has had a cooling trend since 1885.

The chart from V2 above has data from 1885 to 1991, so let’s compare that period between the three versions of Unadjusted data.

▲ GHCN V3 Unadjusted / GHCN V4 Unadjusted

NASA used to claim thaGHCN-Unadjusted is the raw data as reported by the weather station.
However, the unadjusted data the agency shows does not look like unadjusted data.

As you can see, NASA erased a cooling trend and created a warming trend.

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October 12, 2020 at 05:49PM