Which statement represents a value judgement in science?

Birds lay eggs.

Speeding in a car lowers gas mileage.

Global warming is bad.

Water quality is poor.

1 answer

The statement that represents a value judgment in science is "Global warming is bad." This statement expresses an opinion about the consequences of global warming, implying a negative value judgment regarding its effects on the environment or society. The other statements are more factual and can be supported by empirical evidence.