For now, aeroplanes and rotors are not slathered routinely with temperature-and pressure-sensitive paints because their sensitivity needs to be improved.
Climate sensitivity is a key parameter for estimating the long-term temperature increase expected from a doubling of the concentration of greenhouse gas emissions in the atmosphere.
Climate sensitivity is how much will the temperature change over a doubling of atmospheric CO2 (more strictly, CO2-e, taking account of methane and all the other gasses and converting them to CO2 equivalents).