Learning from nature a group of researchers from City University of Hong Kong have developed a photocatalyst which can covert CO2 into methane fuel. Creating a carbon neutral / negative world with alternate fuels is one of most important agenda for us. Most research and scientists continue to work on this agenda and a team of researchers have developed a new photocatalyst , cuprous oxide with copper-based metal-organic frameworks. Using this new catalyst, the team could manipulate and selectively produce pure methane gas from CO2 using sunlight. Team had been working on this for over 2 years and finally have been able to make success. Kudos and Congratulations to the team. Now they look forward to scale up this to large scale and produce methane on large scale which could really solve the crisis of CO2 to a large extent.