Based on projected trends, Christianity is expected to experience the largest net losses due to religious conversion.
While it's difficult to definitively declare one single "fastest declining" religion without specifying a timeframe and metric (e.g., percentage decrease, absolute number decrease), projections offer valuable insights. A key finding from research suggests that while Christianity is gaining converts, it is also experiencing significant losses.
Here's a breakdown:
- Net Losses: Studies indicate that Christianity is projected to lose a net of 66 million adherents between 2010 and 2050. This loss is primarily attributed to individuals leaving the faith for religiously unaffiliated status. (source: Growth of religion - Wikipedia)
- Conversion Patterns: The same research highlights that Christianity might have the largest net losses regarding religious conversion, indicating more people are leaving the religion than joining it.
Therefore, while not necessarily the percentage-wise fastest declining, the projected net loss for Christianity is the largest among religions studied for the specified period.
