The Montreal protocol was created in 1987 to phase out substances that deplete the ozone layer. The benefits are being felt and the ozone layer should return to its 1980 level by the middle of this century. These substitution efforts do however lead to the emergence of substances from the HFC family, which have a major warming effect. These substances are used in air conditioning (offices, houses, vehicles), domestic appliances and refrigerated display units, restaurants, logistics warehouses.
Without an agreement in Kigali, emissions of these substances will represent 20% of greenhouse gas emissions in 2050, and will generate up to 0.5°C in global warming by 2100, when the Paris Agreement aims to limit global warming to 1.5°C or 2°C by this date.
In order to facilitate an agreement, Ségolène Royal sent a letter of mobilisation to all of the world's environment ministers in July.
Furthermore, on the fringe of the United Nations General Assembly of 22 September, she announced additional funding by France in order to help developing countries to finance the transition of their economies.
Over the last few days, Ségolène Royal has contacted the most hesitant countries on the subject of an ambitious agreement in order to help them to address the challenges of these negotiations.
In particular, Ségolène Royal underlines that some of the efforts of the Paris Agreement would be rendered futile in the absence of HFC regulation.