"Carbon dioxide emissions remain very high. This is disturbing and a cause for real concern," Francis said in an address at the close of a two-day conference titled Energy Transition and Care of Our Common Home. "More worrying is the continued search for new fossil fuel reserves, whereas the Paris Agreement clearly urged keeping most fossil fuels underground."

In attendance at the conference were several major players in the oil and gas industry, according to Reuters, including ExxonMobil and Shell—both of which denied the reality of climate change in public for decades despite knowing privately about the threat soaring carbon emissions posed to the planet.

A total of fifty industry executives were reportedly in attendance at the two-day event.

Denouncing "unlimited faith in markets and technology" exuded by corporate executives in an effort to justify the disastrous status quo, the pontiff argued that a just transition to clean, renewable energy is "a duty that we owe towards millions of our brothers and sisters around the world, poorer countries, and generations yet to come."

"We know that the challenges facing us are interconnected. If we are to eliminate poverty and hunger…the more than one billion people without electricity today need to gain access to it," Francis said.

"Our desire to ensure energy for all must not lead to the undesired effect of a spiral of extreme climate changes due to a catastrophic rise in global temperatures, harsher environments, and increased levels of poverty," he added.