Climate change is a global challenge and it must be seen as a common issue for the entire planet to work together on, but it is increasingly caught in the web of whose responsibility it is - the developed world or the developing world, including the Global South. The other challenge being faced is the sharing of technology and financing the shift from fossil fuels to environment-friendly methods. A discussion at the NDTV World Summit brings insight on this pressing global challenge and who is doing what across the world to address it.