The old coins /become/ the new coins, so all that there will be in the end is the market cap of the new coins.

New coins = old coins + ICO coins

Say, we have new coins = 70% exchanged old coins (coins proportionately distributed in existing network)

                                       and

                                      30% new coins issued via ICO tokens

Our Initial Contribution Offering sale will be for ~30% of new circulation, with these tokens including a host of additional benefits. So, we are presenting two ways to access the new Carboncoin blockchain: through the existing network, or through the ICO.

Anyone selling their existing coins now will be reducing their holdings on the new blockchain, which is not in their interests. Anyone looking to enter the new carboncoin market now can do so now, because there are coins available at these levels. This supply should not continue, but presents an opportunity if it does.

The precise numbers will be confirmed on the whitepaper, but we hope this provides some additional clarity.