The evolution of papal transportation reflects changes in the papacy, society, and technology. From the portable throne to modern vehicles, each mode of transport has served practical and symbolic purposes.

Here's a summary of that evolution:

Sedia Gestatoria

• The Sedia Gestatoria was a portable papal throne used on solemn occasions 1. It consisted of a silk-covered armchair on a platform, carried by twelve footmen in red uniforms 1. Two large fans made of white feathers (flabella) were carried at the sides 1.
• It was used during the coronation of a new pope and solemn entries into St. Peter's Basilica 1. During the coronation, as the newly-elected Pope sat on the Sedia Gestatoria, a master of ceremonies would burn three bundles of tow before him, saying, "Sancte Pater, sic transit gloria mundi" (Holy Father, so passes the glory of the world) 1.
• The tradition of carrying the newly-elected pope to his church has ancient roots, possibly related to the Roman Sedia curulis 1.
• The Sedia Gestatoria was also used when the Pope received tributes from various kingdoms and when he carried the Blessed Sacrament publicly 1.

Tiara

• In past centuries, Popes wore the tiara at solemn official celebrations, especially on the day of their "coronation" 2. Pope Paul VI donated his tiara to charity and introduced the use of a simple mitre 2.
• Pope Benedict XVI decided not to include the tiara in his personal coat of arms, replacing it with a mitre 2. The Papal mitre in his arms is silver with three bands of gold, symbolizing the powers of Orders, Jurisdiction, and Magisterium 2.

Modern Transportation and Environmental Concerns

• Pope Francis has called for changes in lifestyles, production, and consumption to counteract global warming 3. He emphasizes the need for a transition to a sustainable development model that reduces greenhouse gas emissions 3.
• The Holy See has committed to achieving net-zero emissions by 2050 and promoting education in integral ecology 4.
• Pope Francis supports the use of solar energy and has initiated the construction of an agrivoltaic plant to power Vatican City State 3.
• The Church recognizes the importance of caring for God's creation and addressing environmental challenges like pollution, climate change, and access to clean water 5.
• The Holy See has acceded to the United Nations Framework Convention on Climate Change and the Paris Agreement 6.
• Pope Francis has stressed that the environmental crisis is a human and social problem requiring commitment, knowledge, and participation from everyone 7.
• The Church's commitment to the environment is linked to the idea of stewardship, where humans are entrusted with the care of creation 8. The use of natural resources should aim at serving the integral development of present and future generations 8.

In summary, papal transportation has evolved from the Sedia Gestatoria, a symbol of papal authority and solemnity, to a focus on modern, sustainable transportation methods that reflect the Church's commitment to environmental stewardship and addressing climate change.