Complex sentence: However, the data has been found wanting by some including Dr Kevin Trenberth from the illegally hacked climategate emails, possibly due to the in-ability to track UV degradation and drifts in the temperature sensors in the internal blackbodies.
Split into simpler sentences: However, the data has been found wanting by some including Dr Kevin Trenberth, as described in the illegally hacked climategate emails. This is possibly due to the in-ability to track UV degradation and drifts in the temperature sensors in the internal blackbodies.