Kigali, the capital of Rwanda, has reached an agreement to limit the future use of hydrofluorocarbons – or HFCs, chemical refrigerants used in air conditioning systems, refrigerators and cars that contribute to global warming. Highlights: HFO-1234yf has similar physical properties to HFC-134a. Therefore, HFO-1234yf has the potential to be used in current HFC 134a systems with minimal system modifications. The 2016 Kigali Amendment requires the gradual introduction of HFCs with a high global warming potential of more than 80% (in CO2 equivalent) over the next 30 years. It is estimated that the emissions avoided up to 2100 could reach between 5.6 and 8.7 gigatons of CO2 equivalent per year. In total, this would be more than ten years of current annual CO2 emissions due to human activities. This will prevent global warming of up to 0.4°C by the end of the century. Themes: Climate change • Environment • Global warming • HFC • Hydrofluorocarbons • International agreements • Kigali Agreements • Montreal Protocol • Rwanda This is a legally binding agreement between the signatories. The Paris Agreement on climate change mitigation was followed by another important global agreement – the Kigali Agreement. In this article, we explain the importance of the Kigali agreement and its relevance for India.
Themes: International Day for the Conservation of the Ozone Layer • Kigali Agreements • Montreal Protocol • Ozone Layer • World Ozone Day The Kigali Agreement is important because it addresses the vital issue of HFCs. HFCs are potent greenhouse gases, and to mitigate climate change, countries must strive to reduce their production and use and phase them out. That is why the Kigali agreement is gaining in importance. The main features of this agreement are briefly described below. Nairobi, 14 years old. July 2020 – The Kigali Amendment to the Montreal Protocol, an international agreement to reduce the use of fluorinated hydrocarbons (HFCs), has reached an important milestone: Liberia is the 100th nation to have ratified the amendment, giving a welcome boost to the global fight against climate change. . . .