On a trip to Indonesia in early September, 2024, Pope Francis signed a declaration on religious harmony and environmental protection at the Istiqlal mosque in Jakarta with the mosque’s grand imam. The Pope said that our species was facing a “serious crisis” bought about by war and the destruction of the environment.[1] Of war, the tremendous destruction of civilian infrastructure in Ukraine and Gaza that had been taking place was doubtless on the cleric’s mind. Of the environment, climate change was undoubtedly on his mind. In addition to volcanoes and wild fires, human emissions of carbon into the atmosphere were poised to push the global temperature increase above the critical threshold of 2.5 degrees C above the pre-industrial level. What connects the two problems at the root—the source of the two problems—went unmentioned. In fact, the Pope made a statement that, if acted upon, stood to exacerbate the underlying problem: the exponential explosion of growth of the human population in the twentieth century.
1. Joel Guinto, “Pope and Top Indonesian Imam Make Joint Call for Peace,” BBC.com, September 5, 2024.
