Definition: Convert a disfluent question to a proper question. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.
Input: What does the WG I Summary for Policymakers report say increased greenhouse gases cause or rather human activities are doing to greenhouse gases?

What does the WG I Summary for Policymakers report say human activities are doing to greenhouse gases?