Climate Philanthropy: The Next (R)evolutionary Step

Climate action has been supported by philanthropic giving for many years. However, the field is at a crossroads: we are not reducing emissions fast enough and the big global reshift we all feel is needed is not happening. Recently, large global philanthropists have pledged to spend several billions dollars per year to fight the climate emergency. What are some key lessons learnt by global philanthropy in the past decades? What is the most strategic, break-through space in which dollars can be invested to address climate most effectively?