G20 leaders' summit members' national flags. (Photo: POS.KUPANG.COM/VNA)

He said G20 leaders’ voices are important to the Climate Solidarity Pact, an initiative that forces developed economies to technologically and financially support developing economies in their transition to renewable energy to limit global warming to 1.5 DC

Guterres also said emergency actions are needed to prevent famine in many places around the world, and the Black Sea Grain Initiative agreed by Russia and Ukraine will play a crucial role.