In conclusion, she urged the parties, whom she described as the custodians of the Montreal Protocol, to remember that while it was easy to cause major changes to the atmosphere it was very difficult to restore equilibrium, and to factor into their considerations the lengthy time lag between decision-making, action and the responsiveness of the atmosphere. Open and informed discussions, she said, would help to build bridges between diverging views, strengthen trust and cooperation among parties and pave the way for a path forward to emerge.