175 countries sign Paris climate Agreement on 22 April 2016 demonstrating that the international community is determined to take global action on climate change

According to the UN chief, the participation by so many countries and the attendance by so many world leaders leaves “no doubt” that the international community is determined to take climate action. He also welcomed the strong presence of the private sector and civil society, saying they are “crucial to realizing the great promise of the Paris Agreement.”

Though, the top 4 emitting countries/regions, which together account for almost two thirds (61%) of the total global CO2 emissions are China (30%), the United States (15%), the European Union (EU-28) (10%) and India (6.5%). Australia, Argentina, Cameroon, Canada, China, France, Mali, Mexico, Philippines, and the United States announced plans to join the agreement in 2016. Other countries, including Brazil, the European Union, and the Russian Federation, pledged to swiftly work to complete the necessary steps for joining the agreement.

Countries have to operate on two distinct time lines as they put the promises of Paris into action. First is the next five years, when they will need to radically increase emissions cuts to avoid locking out a 2C future. Second is the long term, when they must put plans in place for a late 21st-century economy powered almost entirely by clean energy, the experts said.

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