The Pope’s popularity in the US is falling ahead of his first visit. Is his environment encyclical to blame, asks Madeleine Teahan

Is Pope Francis the most popular person in the world? Sometimes it feels that way, but with the Pontiff making his first trip to the United States this September there are signs that Americans maybe turning against him. A Gallup poll released last week suggested that Francis’s popularity has fallen dramatically in the country, down to 59 per cent from a peak of 76 per cent the year before.