Developed countries pledged $9.3 billion to help poor nations tackle climate change at a conference held in the German city of Bonn on Thursday, authorities said. However, nongovernmental groups criticized the outcome, saying the funds fall short of what is needed to tackle climate change.

The pledges will help replenish the South Korea-based Green Climate Fund, established in 2010 as a financing vehicle for developing countries. It’s the largest such fund aimed at providing money to help poorer nations in reducing their emissions, coping with impacts of climate change and boosting their transitions to clean energy.

The pledged money at the conference in Bonn will be used to finance projects in developing and emerging nations between 2024 and 2027. The German government alone pledged 2 billion euros ($2.1 billion).