Before seeking the approval of world leaders on his plans for both, Biden may be looking to seek approval from one other major "world leader" about a global minimum tax of 15% and plans to reduce greenhouse gasses, according to Reuters.

Biden's meeting with the pope comes at a time when the church has "sought to admonish" Biden for his stance on abortion. Biden will be accompanied by his wife, the report says. 

White House spokesperson Jen Psaki said: "They will discuss working together on efforts grounded in respect for fundamental human dignity, including ending the COVID-19 pandemic, tackling the climate crisis, and caring for the poor."

President Biden is also expected to meet with French President Emmanuel Macron while they are both in Rome, the report says.