Question

why is there is no such thing as \cold?\
there is only a level of thermal energy at which an object has more or less heat.
there is no metric measurement for cold.
a method for measuring \cold\ has yet to be developed.
formulas for calculating thermal heat are inaccurate when considering both heat and cold.

Explanation:

Temperature is a measure of thermal energy. Cold is a relative term. Objects have varying levels of thermal energy (heat). When we say something is cold, it just means it has less thermal energy compared to something else. There's no separate entity called "cold" in the scientific sense of thermal energy.

Answer:

There is only a level of thermal energy at which an object has more or less heat.