Recently, there has been another discussion between crypto enthusiast to compare PoW (Proof of Work) and PoS (Proof of Stake) and their impact on the environment, this discussion has taken place again after Elon Musk Officially Not Supporting Payments Through Bitcoin for Car Purchases at Tesla.

So that you can understand it more deeply, let's read the following article: https://medium.com/oasis-protocol-project/proof-of-work-vs-proof-of-stake-which-is-better-for-the-environment-d6ca69a61411

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For now, there is no airdrop or bounty program. By The Way, Oasis Network (ROSE) Has Done ICO on Coinlist.