Twee Rivieren station data show about 0.040°C per year warming (1960–2009).
Claim:
Station-based observations from the Kgalagadi/Kalahari Gemsbok National Park area show that the mean annual maximum temperature in the Kgalagadi region increased by about 0.039°C per year (about 1.6°C over 40 years).
HARDLY BS