Blockchain continues to be deployed into various businesses and industries. However, Blockchain is not without its problems.  Several challenges have already been associated with the use of this technology.  Identify at least 5 key challenges to Blockchain. Additionally, discuss potential solutions to these challenges. Lastly, please discuss if we will see the limitations to blockchain be reduced or mitigated in the future.  

There are several emerging concepts that are using Big Data and Blockchain Technology. Please search the internet and highlight 5 emerging concepts that are exploring the use of Blockchain and Big Data and how they are being used.