A new report issued Monday (June 1) mapping the Catholic Church of more than 1.2 billion souls – on track to reach 1.64 billion by 2050 – holds some surprises.

And not all bode well for the church’s future as it faces major demographic and social shifts.

“Global Catholicism Trends & Forecasts,” created by the Center for Applied Research in the Apostolate (CARA) at Georgetown University, looks at seven regions of the world, wrapping the United States, Mexico and Canada in with Central and South America as simply the Americas.

The focus is on “the three most important indicators of ‘vitality’ for the Catholic Church...the number of Catholics, the number of parishes, and the number of priests.”

Among the key findings:

The global Catholic population has grown by 57 percent since 1980.

It's up from 7.83 million in 1980 to 1.2 billion. However, this growth varies steeply by region.

Europeans are rapidly shedding the continent's historic Catholic identity while the Global South, particularly Africa and Asia, booms with Catholics.

Europe saw only a 6 percent increase – from 271 million to nearly 284 million. Meanwhile, growth in Africa was 238 percent as the number of Catholics climbed from 58.6 million in 1980 and to 198 million in 2012.

But that growth is primarily due to a higher birth rate, “not to conversion or evangelization,” observed the Rev. Thomas Reese, a social scientist and columnist for the National Catholic Reporter who has seen the report.

When that birth rate levels off with economic development, Reese wondered, then what? “Some like to say the Global South is the future of the church but I’m not convinced,” said Reese.

More people than ever before are receiving the core sacraments of Catholicism including baptism, first communion, confirmation, and marriage in the church.

But the growth in absolute numbers disguises more telling numbers.

Worldwide, there has only been a 7 percent growth in parishes, the brick-and-mortar churches where these rites are held. And the overall rate per 1,000 Catholics receiving the sacraments “is in uninterrupted decline world wide. It’s not keeping up with population growth,” said Mark Gray, senior research associate for CARA and a co-author of the report.

The reasons vary from a lack of interest in the West to a lack of access to parishes and priests in developing countries to simple demographics.

If birthrates fall, there are fewer babies to baptize. As life expectancy increases and the average age of Catholics rises, those areas with older Catholics have lower baptism rates: “You only get baptized once in your life,” said Gray.

In raw numbers, marriages are increasing. But measured by the rate per 1000 Catholics, marriage in the church, said Gray “is one of the hardest hit sacraments around the globe.”

There's been a groundswell of new priests in Africa.

The church in Africa more than doubled in the number of priests between 1980 and 2012, going from 17,346 priests to 40,133.

But ”I was surprised to see they are not enough to balance the steep losses worldwide,” said Reese.

Not by half. There’s been a 17 percent drop in the number of priests world wide. It's driven by a 32 percent plunge in Europe, for the same period, in which the number of priest dove from 243,319 to 165,229.

A separate bank of statistics researched by CARA tracking the U.S. church shows a 35 percent drop in priests between 1980 and 2014. That likely explains why the new global report shows barely a blip of growth for the Americas region as a whole,

Reese, a Jesuit priest, political scientist and author, who is 70 years old, was ordained in 1962, the era before Vatican II reforms, when U.S. seminaries were packed. That world is not coming back, he said.

The report acknowledges, “The parishes that served the Church for hundreds and hundreds of years are no longer closely aligned with the world’s Catholic population and certainly not its most frequently Mass attending populations. However, there is no giant crane that can pick up a parish from Europe and relocate it to Africa.”

Reese is skeptical even such magic would matter.

“Clearly the Catholic Church is becoming a southern church. But I am not convinced it’s the future. I think it is simply a repeat of the past,” he said.

“Catholicism is very attractive to people coming into a literate world, a more modern world. We see that happening in Africa as they transition to the developing world. But what happens next?

“The decline of Christianity and religion in the West is simply going to come a generation later in Africa and Asia. Going to Church on Sunday will no longer be the biggest thing in the village that week once people have all the ‘First World’ distractions of the Northern Hemisphere – soccer matches, and TV and the mall and the Internet."

The global statistics map out the issues but don’t solve them. Said Reese, “If we don’t figure out how to save Catholicism in the USA and Europe, the same thing is going to happen in Africa in two or three generations.”