Describe the size of insolation when it strikes the Earth.

Terrestrial Radiation – Once insolation is absorbed by the Earth's surface, it eventually gets re-radiated back into the atmosphere or into space. ... Some of this infrared radiation is trapped by gases in the atmosphere. This helps to heat the atmosphere and the planet. This effect is called the greenhouse effect

the surface of the earth absorbs. 51 percent of the insolation

It's the vector carrying a pathogen