The world has already warmed an average of nearly 1.2 degrees Celsius since the mid-1800s, according to a report by global climate scientists released in June 2023, unleashing a series of extreme weather events. Hardest hit are the most vulnerable people and the world's poorest countries, who have done little to contribute to the fossil fuel-driven rise in temperatures. According to this trend, climate change driven by rich countries will cause mortality among poor nations to increase, the co-founder and co-director of the Abdul Latif Jameel Poverty Action Lab (J-PAL) and Nobel-prize-winning economist Esther Duflo warned in an interview with AFP, calling for a global tax ahead of French president Emmanuel Macron's summit for a new global financing pact, held in Paris on 22 June 2023.