Global warming ?

The picture above shows the course of the 365 day average planetary temperature for a number of locations on the hemisphere during the period 1982-2006. The planetaire temperature is the temperature of the earth surface as observed by Meteosat through the atmospheric IR window. The graphs represent the following locations

- 2 in the Netherlands (Middle Utrecht and Grean Heart),

- 2 in the Sahara region (Bilma in Niger and a location in Mauritania)

- 2 lin the ocean west of Africa.

The locations in the Sahara and ocean are shown in the picture below.

The graphs do not point to global warming. In stead we observe a slight decrease in planetary temperature in the order of 0.03 to 0.12 K per year.