UNITED NATIONS - Leaders from 171 countries gathered on Friday to sign the landmark Paris Agreement on climate change, which is the first step toward the pact's entry into force.
"I urge all countries to move quickly to join the agreement at the national level so that the Paris Agreement can enter into force as early as possible," said United Nations Secretary-General Ban Ki-moon at the opening ceremony of the event.
Noting that the window for keeping global temperature rise below 2 degrees Celsius is rapidly closing, Ban called on the global community to "intensify efforts to decarbonize our economies."
Adopted by 196 parties last year in Paris, the agreement sets a target of holding the global average rise in temperature below 2 degrees Celsius, and preferably below 1.5 degrees Celsius.
Moreover, the UN chief pointed out that "we must support developing countries in making this transition," as "the poor and most vulnerable must not suffer further from a problem they did not create.
Taking place on the International Mother Earth Day, the signing ceremony would break the first-day record for signatures which is previously set in 1982 when 119 states signed the Convention on the Law of the Sea.(Xinhua)