World leaders are discussing climate change in Glasgow, and while they are at it, one crucial issue everyone needs to face is who's ultimately paying the huge cost of global energy transition. Developed countries have promised to hand out billions of dollars in aid to developing countries to reach global carbon neutrality together, yet little has been done. How can people make a breakthrough? On that CGTN host Tian Wei asked Marcos Troyjo, the president of the New Development Bank.