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Pope Leo XIV formally opens his pontificate with Mass in St. Peter's Square before tens of thousands

Pope Leo XIV formally opens his pontificate with Mass in St. Peter's Square before tens of thousands
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Pope Leo XIV meets with members of the Centesimus Annus Foundation, at the Vatican, May 17, 2025. (Reuters)
Pope Leo XIV formally opens his pontificate with Mass in St. Peter's Square before tens of thousands
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Pope Leo XIV's waves to people before his formal inauguration of his pontificate with a Mass in St. Peter's Square attended by heads of state, royalty and ordinary faithful, Sunday, May 18, 2025. (AP)
Pope Leo XIV formally opens his pontificate with Mass in St. Peter's Square before tens of thousands
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Pope Leo XIV arrives on the popemobile for his inaugural Mass at the Vatican, May 18, 2025. (Reuters)
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Updated 18 May 2025

Pope Leo XIV formally opens his pontificate with Mass in St. Peter's Square before tens of thousands

Pope Leo XIV formally opens his pontificate with Mass in St. Peter's Square before tens of thousands
  • First US pope Leo XIV takes to popemobile ahead of inaugural mass

VATICAN CITY: Pope Leo XIV officially opened his pontificate as history’s first American pope on Sunday, presiding over an inaugural Mass in St. Peter’s Square before tens of thousands of people, presidents, patriarchs and princes in a ceremony that blended ancient ritual, evocative symbols and a nod to modern-day celebrity.
Leo launched the celebration by taking his first popemobile tour through the piazza, a rite of passage that has become synonymous with the papacy’s global reach and mediatic draw, used at home and abroad to bring popes close to their flock. The 69-year-old Augustinian missionary smiled and waved from the back of the truck, but didn't appear to stop to kiss babies.
Security was tight as civil protection crews in neon uniforms funneled pilgrims into quadrants in the piazza and up and down the boulvard that leads to it.
US Vice President JD Vance, one of the last foreign officials to see Pope Francis before he died, paid his respects at the Argentine pope’s tomb upon arriving in Rome late Saturday and was heading the US delegation honoring the Chicago-born Leo.
Leo — a 69-year-old Augustinian missionary elected May 8 after a 24-hour conclave who appears a bit more timid than Francis — smiled and waved from the truck as security guards jogged alongside.
After the public tour in the square, Leo goes into the basilica to begin the solemn ceremony to inaugurate his ministry in a series of rites that emphasize the service that he’s called to perform in leading the Catholic Church. He prays first at the tomb of St. Peter, considered to be the first pope, under the basilica’s main altar and then processes out into the piazza for the Mass.
Strict diplomatic protocol dictates the seating arrangements, with both the United States and Peru getting front-row seats thanks to Leo’s dual citizenship. Vance, a Catholic convert who tangled with Francis over the Trump administration’s mass migrant deportation plans, is being joined by US Secretary of State Marco Rubio, who arrived in Rome ahead of time to try to advance Russia-Ukraine peace talks.
Peruvian President Dina Boluarte is one of around a dozen heads of state attending, as well as Ukrainian President Volodymyr Zelensky. Russia is being represented by the culture minister, Olga Liubimova.
Three dozen of the world’s other Christian churches sent their own delegations, headed by patriarchs, reverands, ministers and metropolitans.
US seminarian Ethan Menning, 21, from Omaha, Nebraska, wrapped himself in an American flag, purchased at a truck stop in Iowa, to celebrate.
“Rome always felt like home for a Catholic, but now coming here and seeing one of our own on the throne of Peter ... it almost makes Jesus himself more accessible,” he said.
Kalen Hill, a pilgrim from the US, got to St. Peter’s soon after the gates opened Sunday morning and said he never expected an American would lead the 1.4-billion strong church.
“I would say all the Americans are emotional about it,” he said. “It is really powerful for American Catholics who sometimes feel separated from the world church to be brought in and included in this community through Pope Leo.”
During the Mass, Leo will receive the two potent symbols of the papacy: the lambswool stole, known as a pallium, and the fisherman’s ring. The pallium, draped across his shoulders, symbolizes the pastor carrying his flock as the pope carries the faithful. The ring, which becomes Leo’s official seal, harks back to Jesus’ call to the apostle Peter to cast his fishing nets.
The other symbolically important moment of the Mass is the representational rite of obedience to Leo: Whereas in the past all cardinals would vow obedience to the new pope, more recent papal installations involve representatives of cardinals, bishops, priests, deacons, nuns, married couples and young people participating in the rite.
Another change from the past is that Sunday’s Mass isn’t a coronation ceremony, which used to involve the pope receiving a tiara, but is merely known as a “Eucharistic Celebration for the start of the Petrine ministry of the Bishop of Rome.”
In the days since his historic election, Leo has already sketched out some of his key priorities as pope. In his first foreign policy address, he said the Holy See’s three pillars of diplomacy were peace, justice and truth. In his first major economics address, he emphasized the Catholic Church’s social doctrine and the search for truth. It’s not known if he’ll use his installation homily as a mission statement as some of his predecessors did.
In his Oct. 22, 1978 installation homily, St. John Paul II uttered a phrase that became something of a refrain of his pontificate and the ones that followed: “Be not afraid! Open wide the doors to Christ!”
Pope Benedict XVI quoted his predecessor during his installation homily, on April 25, 2005, and offered a meditation on the symbols of church unity represented by the pallium and fisherman’s ring. Francis’ installation homily, on March 19, 2013, focused on the need to protect the environment, an early hint of what would become one of the priorities of his pontificate.
Leo has vowed all efforts to find peaceful ends to the wars in Ukraine, Gaza and elsewhere. But as a priority, he has also identified the challenges to humanity posed by artificial intelligence, making the parallel to the challenges to human dignity posed by the industrial revolution that were confronted by his namesake, Pope Leo XIII, who was pope from 1878-1903.
After the homily and at the end of the Mass, Leo will offer a final blessing and then go into the basilica to greet the heads of the more than 150 official delegations attending.
Security was tight, as it was for Francis’ funeral on April 26, which drew an estimated 250,000 people. Rome authorities are planning for another 250,000 on Sunday. The piazza and main boulevard leading to it, and two nearby piazzas were set up with giant television screens, and dozens of portable toilets have been erected in a nearby park.


At UN climate talks in Brazil, the only sign of the United States is an empty chair

At UN climate talks in Brazil, the only sign of the United States is an empty chair
Updated 10 sec ago

At UN climate talks in Brazil, the only sign of the United States is an empty chair

At UN climate talks in Brazil, the only sign of the United States is an empty chair
  • Brazil President Luiz Inácio Lula da Silva, whose nation is hosting these talks, urged negotiators not to forget that “the climate emergency is an increase of inequality”

BELEM, Brazil: A litany of recent weather disasters rang long Monday at the opening of UN climate negotiations: Hurricane Melissa in Jamaica, a deadly tornado in Brazil, droughts and fire in Africa. Against that backdrop, activists used an empty chair to drive home the absence from these talks of the United States, the world’s richest nation and second-biggest carbon polluter.
World leaders highlighted the devastation wrought on some of the world’s poorest places to show the need to work collectively to fight global warming, which is fueling extreme weather. But any united front will be without the US, one of only four nations missing the talks, along with tiny San Marino and strife-torn Afghanistan and Myanmar.
The 195 nations who did come to Belem, a weathered city on the edge of the Brazilian Amazon, for the talks known as COP30 were told that only together can they swiftly reduce the emissions from coal, oil and gas that cause climate change.
While the activists’ empty chair primarily illustrated the US absence, it was also intended to be a call-out for other nations “to step in and step up,” Danni Taaffe with Climate Action Network International told The Associated Press.
Those leading the talks sounded a similar note.
“Humanity is still in this fight. We have some tough opponents, no doubt, but we also have some heavyweights on our side. One is the brute power of the market forces as renewables get cheaper,” United Nations climate secretary Simon Stiell said.
A clear mandate
Brazil President Luiz Inácio Lula da Silva, whose nation is hosting these talks, urged negotiators not to forget that “the climate emergency is an increase of inequality.”
“It deepens the perverse logic that defines who is worthy of living and who should die,” Lula said.
This year’s talks are not expected to produce an ambitious new deal. Instead, organizers and analysts frame this year’s conference as the “implementation COP.” Countries had a clear mandate: arrive with their updated national plans to fight climate change.
On Monday, the United Nations released updated calculations showing that those national pledges promise to reduce projected 2035 global greenhouse gas emissions 12 percent below 2019 levels. That’s 2 points better than last month, before new pledges rolled in.
Attendees on Monday stressed cooperation, with Stiell saying that individual nations simply cannot cut heat-trapping gas emissions fast enough on their own.
André Corrêa do Lago, president of this year’s conference, emphasized that negotiators must engage in “mutirão” — a local Indigenous term that refers to a group uniting to complete a task.
A united front — without the US
Complicating those calls is the absence of the United States, where US President Donald Trump has long denied the existence of climate change.
The UN’s updated figures Monday depend on a US pledge that came from the Biden administration in December — before Trump returned to the White House and began working to boost fossil fuels and block clean energy like wind and solar. His administration did not send high-level negotiators to Belem, and he began his second term by withdrawing for the second time from the 10-year-old Paris Agreement, the first global pact to fight climate change.
The Paris Agreement sought to limit warming to 1.5 degrees Celsius (2.7 degrees Fahrenheit) above the historical average, but many scientists now say it’s unlikely countries will stay below that threshold.
The United States has put more heat-trapping carbon dioxide into the air from the burning of coal, oil and natural gas than any other country. China is the No. 1 carbon polluter now, but because carbon dioxide stays in the air for at least a century, more of it was made in the US.
Palau Ambassador Ilana Seid, who chairs the Alliance of Small Island States, said the US withdrawal “has really shifted the gravity” of the negotiating system.
Trump’s actions damage the fight against climate change, former US Special Envoy for Climate Todd Stern said.
“It’s a good thing that they are not sending anyone. It wasn’t going to be constructive if they did,” he said.
Though the US government isn’t showing up, some attendees including former top US negotiators are pointing to US cities, states and businesses that they said will help take up the slack.
‘A tragedy of the present’
Lula and Stiell said the 10-year-old Paris Agreement is working to a degree, but action needs to be accelerated. They pointed to devastation in the past few weeks including Hurricane Melissa in the Caribbean, typhoons smashing Vietnam and the Philippines and a tornado ripping through southern Brazil.
Scientists have said extreme weather events have become more frequent as Earth warms.
“Climate change is not a threat of the future. It is already a tragedy of the present time,’’ Lula said.