Sr Geraldine said, "Being present at COP 15 was a great experience to witness, and be part of, so many dedicated grass-roots people and organisations working to make a difference in their corner of the world ... There was a profound sense of solidarity crying out for an end to climate injustice.
"The array of various people of many nationalities distinctive by their traditional cultural costumes made visible the fact that we are all citizens of the global village - would that our leaders are accountable to each one's human rights."
Sr Geraldine said that as the snow continued to fall in the second week, in the midst of the summit disarray, delegation members continued to meet each morning to pray and plan strategically.
"Like thousands of other NGOS we, too, were locked out of the Bella Centre, but amidst riots, demonstrations and mounting despair we held out in firm hope, never giving up on an opportunity to speak, listen, and act."
She said that at the final dinner she was moved to tears at the deflation and disappointment of the President of Kiribati, Mr Anote Tong.
"I personally felt the pain that occurs when neighbour does not reach out to neighbour in times of dire need. Australia had truly let down her neighbours.
If we do not take up our responsibility to our Pacific neighbours, and then who will? We are I believe only at the beginning of the greatest moral struggle of our time.
The Pacific Calling Partnership delegation consisted of eight people.