Answer: Scientific evidence supports a new idea.
Explanation:
Any hypothesis or scientific statement can only be considered valid if it is supported by a evidences and data obtain or produced after the implementation of experimental procedures. The scientific statement or hypothesis can be considered incorrect or false if more valid evidences obtain in future which may be more acceptable.
Therefore, the idea, Scientists believe that Earth is becoming warmer can become unacceptable over time if new ideas which contradict the given idea comes with valid and supportive ideas.
