Answer:
Co-variation between variables
Explanation:
Based on the scenario being described within the question it can be said that this scenario demonstrates the Co-variation between variables. This refers to the measure of how much two seemingly random variables vary together as opposed to separately which would otherwise be variance. Which explains why when one variable changes in value the other changes in an un-correlated way.
Environmental laws help ensure the environment and the economy are equally protected and promoted, not just because we need them both, but because each needs the other.
