Capizzi told CNA that he thinks people overlook this basic fact because "so much in the world distracts us from the role of faith in the loving relationship of parents."
"Concerns about the world and its future are distracting: in faith we are taught God saves and loves the world," he said.
A recent online poll by the website Bussiness Insider suggested as many as one-in-three Americans shares Ocasio-Cortez's fears, with 30 percent of all respondents saying parents should consider the effects of climate change before having a child, a number that climbed to 38 percent among Americans aged 18-29.
Dr. Catherine Pakaluk, assistant professor of social research and economic thought at Catholic University, said that having children is a sign of optimism and that climate concerns should take a backseat to other factors.
"I think it takes a lot of courage to have a child, in any time," Pakaluk said. "Having children in general seems to require a lot of courage and optimism."
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Pakaluk, whose primary research area is in demographics and families, told CNA that having a child is an intimidating task, but one that is made easier with what she called "spiritual resources."
She said she is afraid that the spiritual resources needed to inspire couples to raise children are "waning" in today's society, resulting in fewer births.
She did not, however, place the blame squarely on climate change, noting instead that the climate has undergone massive changes for thousands of years, "apparently without our affecting it."