World leaders who travelled to New York to sign the Paris Agreement were able to view a selection of high quality pictures from the 21st Conference of the Parties (COP21) on their way to the signing ceremony on Friday.

The pictures, taken by photographer Hajü Staudt for the United Nations Framework Convention on Climate Change, were printed in black and white and put on display at UN headquarters. They represent some of the landmark moments of the Paris COP21, at which the new universal agreement on climate change was adopted.

150 world leaders at the opening of the United Nations Climate Change Conference in Paris:

3,500 media reported from Paris:

Historic Paris Agreement is delivered:

The Secretary-General and his senior advisors:

United Nations Messenger of Peace Jane Goodall:

The voice of Indigenous People:

Civil Society were fully engaged:

Paris made headlines around the world:

Hope is offered to future generations:

Photo credits:  Hajü Staudt/UNFCCC