The COP21 Conference in Paris in December 2015 was an important milestone for the "Airport Carbon Accreditation" programme. On the occasion of its presentation at the Conference, the European airport industry committed to increasing the number of carbon neutral airports to 50 by 2030. Following the announcement of this commitment, ACI EUROPE and the carbon standard "Airport Carbon Accreditation" signed a partnership with the United Nations Framework Convention on Climate Change (UNFCCC), at a special side event. The partnership agreement committed ACI to supporting the UNFCCC's 'Climate Neutral Now' campaign, while the UNFCCC would support airport climate action at airports, with a particular focus on carbon management by airports through "Airport Carbon Accreditation". The organisations agreed also to develop a common work programme and communications plan promoting carbon neutrality at airports.