Pope Francis has rallied global leaders, including US governors and mayors from across the globe, to spearhead a "holistic" climate initiative aimed at reducing emissions and tackling inequality. 

During a Vatican-hosted conference on Thursday, he emphasised the "refusal to act quickly to protect the most vulnerable who are exposed to climate change caused by human activity is a serious offense".  

He advocated for a "symphony of cooperation and global solidarity" involving emissions reduction and other proactive measures. 

The pontiff highlighted the disproportionate impact of climate change on impoverished populations, asserting that it leads to unemployment, migration, and increased health risks. He passionately called for an end to fossil fuel dependency and protection of crucial natural habitats. 

California governor Gavin Newsom reflected on the Pope's moral stance on climate action, stating: "Fighting climate change is not an intellectual exercise." 

New York Governor Kathy Hochul echoed this sentiment during the conference, questioning: "Is there justice for all?" She acknowledged the Pope's influence in guiding leaders towards meaningful climate action that encompasses care for the earth and the impoverished. 

Boston mayor Michelle Wu also recognised the significance of city-led climate initiatives due to urban centers being both population hubs and major emission contributors. She highlighted Pope Francis's moral leadership as a catalyst for urgent action and shared how Boston's Archdiocese is actively pursuing decarbonisation efforts.