The difference between Global and Spherical

When used as adjectives, global means spherical, ball-shaped, whereas spherical means shaped like a sphere.

Global is also noun with the meaning: a globally scoped identifier.

check bellow for the other definitions of Global and Spherical

Global as an adjective:

Spherical, ball-shaped.

Examples:

"In the center was a small, global mass."
Global as an adjective (not [[comparable]]):

Of or relating to a globe or sphere.
Global as an adjective:

Concerning all parts of the world.

Examples:

"Pollution is a global problem."
Global as an adjective (not comparable, computing):

Of a variable, accessible by all parts of a program.

Examples:

"'Global variables keep support engineers employed."
Global as an adjective:

Which has to be considered in its entirety.

Spherical as an adjective (geometry):

Shaped like a sphere.
Spherical as an adjective (geometry):

(no comparative or superlative) Of, or pertaining to, spheres.
Spherical as an adjective (mathematics):

Of a coordinate system, specifying the location of a point in a plane by using a radius and two angles.
Spherical as an adjective (astrology):

Of or relating to the heavenly orbs, or to the sphere or spheres in which, according to ancient astronomy and astrology, they were set.