She is the adviser to the Pope.
How do you know this? As far as I could find out, she was among many others invited by Cardinal Peter Turkson (president of the Pontifical Council for Justice and Peace) to join the Vatican climate conference last summer. (She endorsed 'Laudato Si'.)
That conference had been organised by the Pontifical Justice and Peace Council, together with CIDSE, an international alliance of Catholic development agencies. 200 political, religious and civil society leaders were at that two days conference.
Do you call all the others "adviser to the Pope" as well, Ionus? How do you call those, who advice the Pope before 'Laudato Si' was published, like Edenhofer and Klein (General Secretary of the CIDSE ?