Is your service already offered by a centralized entity? If so, why does decentralizing it make it better? Who is/are your competitors and how are you going to deal with them?
Decentralizing carbon offsets allows these savings of lower prices to be benefited from in a peer to peer market, something that wouldn't otherwise be available in a non decentralized manner.
With regards to competition, while there's no other project doing anything like us, some indirect competition may include projects that tokenize renewable energy, since it's also a way to reduce carbon emissions.
These player, though, are relying on renewable energy technologies which are still not price competitive with fossil fuels. Zero Carbon project deliver lower prices leveraging international carbon credits and intense market competition, along with a valuable Energis token reward.
It's not so much of dealing with them but learning to solve the larger concern which is lowering carbon emissions. Together with these other projects, hopefully the project is able to do that.