October 31, 2025 Syropoulos, S., & Sparkman, G. (2025). Most Christian American religious leaders silently believe in climate change, and informing their congregation can help open dialogue. Proceedings of the National Academy of Sciences, 122(13). Home ยป Syropoulos, S., & Sparkman, G. (2025). Most Christian American religious leaders silently believe in climate change, and informing their congregation can help open dialogue. Proceedings of the National Academy of Sciences, 122(13).