greenhouse gas emissions (primarily CO2 and methane) started to be used less, those gasses caused the warming.. aerosols where being overused and therefore, cooling the planet.
Explicit is defined as clearly expressed and leaving no question or ambiguity as to meaning. It is expressed without any implications and which leaves no room for explanation being distinct.
Decipherability means to determine the meaning of. And as it has suffixed to 'able', i.e. Decipherable, it means the one which could be determined like that