2021 was a great year for crypto, where cryptocurrencies have seen the biggest bull market ever.Top coins with strong fundamentals and ambitious teams and prominent products like Cardano got the attention of the entire cryptocurrency community and even celebrities and people outside of crypto.Cardano has seen a lot of developments going on in 2021. The team has partnered with two African countries — Ethiopia and Tanzania — and will work on creating digital identities, education, mobile internet connectivity, and financial acceptance in these countries.As smart contracts are soon coming on Cardano and The Road To Alonzo Continues, with IOHK Launching The Cardano Alonzoblue2.0 Testnet, a bright future stands in front of ADA.In an interview with CryptoPotato, IOHK’s Chief Technology Officer, Romain Pellerin, expressed his thoughts on many important things regarding Cardano.Cardano Growth:When asked that was the exponential crypto market growth of 2021 was the reason for Cardano growth, he said:“I looked at the price movements when we released software and we had a lot of price action last summer, before this bull market — when we released the Shelley update.”According to him, launch of Cardano staking was the main reason for project growth:“About 70% of ADA is staked. And all of this contributed to the price action. And I think we benefited from the bull market and after all, you have the amplification of the overall industry, so we benefit from that.”He said that whenever we launched a new feature on Cardano like staking, the ability to launch NFT, running a pool, etc., more people become interested in ADA, and the Cardano network grows.Pellerin said that Cardano’s energy consumption is 0.01% as compared to BTC. Bitcoin uses a proof of work mechanism, whereas ADA relies on Proof Of Stake, which does not use hashing power.we will always be greener than…