Article: The Scientific Pantheist Who Advises Pope Francis
The "scientific pantheist" is Hans Schellnhuber. He is actually an atheist (which raises questions about either his integrity, advising a Pope or the Pope's gullibility in chosing a sworn enemy as an advisor). His beliefs are sometimes called, "scientific pantheism," however.
The article mentions the Gaia Principle, or Gaia Hypothesis. The orginal Gaia Hypothesis held that, because earth's climate has been stable (swinging from cool to warm) over billions of year, it must have feedback loops maintaining the climate, just like a living organism has feedback loops maintaining a stable internal environment.
In other words, it was an analogy.
However, over time, the Gaia Principle, or "theory," became less of a scientific analogy and more of a mystic, "Gaia, the Mother Earth is a living thing" crackpot idea.
Schellnhuber is of the latter variety.
Read the article: the earth has a "geophysiology." The earth is "cognizant."
Twenty years ago, having a crackpot like Schellnhuber advise you would immediately revoke any and all credibility.
If you read his wikipedia page, he sounds legitimate.
It is as if a prominent Presidential candidate announces that he has Immanuel Velikovsky advising him on astronomy.