Here are a few options for a formal equivalent, depending on your focus:

Option 1 (Direct and authoritative):

Mayor Sadiq Khan Launches £7 Million Initiative to Counter Misinformation Regarding London

Option 2 (Strategic focus):

Sadiq Khan Initiates £7 Million Campaign to Combat Disinformation Targeting the Capital

Option 3 (Brief and professional):

Sadiq Khan Announces £7 Million Strategic Response to London-Focused Disinformation

Recommendation: Option 1 is the most standard for a formal news headline.

Here are a few options for a formal rewrite, depending on your focus:

• Option 1 (Direct and authoritative): Misinformation Regarding Carlow School Safety and Active Travel Project Sparks Public Concern
• Option 2 (Focus on the impact): Misleading Claims Fuel Public Opposition to Carlow Active Travel and School Safety Initiative
• Option 3 (Concise and journalistic): Escalating Misinformation Strains Public Discourse on Carlow School Safety Project

My recommendation: The first option is the most balanced and formal for a news headline.

Here are a few ways to rewrite the title in a formal tone, depending on the desired emphasis:

• Disinformation Center Formally Refutes Claims Regarding the Creation of 25 New Provinces (Neutral and authoritative)
• Official Denial Issued: Disinformation Center Debunks Rumors of 25 New Provinces (Focuses on the response)
• Disinformation Center Issues Clarification Regarding Reported Creation of 25 New Provinces (More diplomatic)

Recommended choice:

Disinformation Center Formally Refutes Claims Regarding the Creation of 25 New Provinces