Actually if we compare it with paper money then it still better. Paper money cause polution more than we think. Every destructed paper money will be replaced by new one which means more and more waste. Maintaining paper money also need cost such as administration cost, security cost, delivery cost and etc. I think bitcoin transactions is still the best in this century.
Well, they won't tell you that because if they do, their agenda won't be successful which is to make cryptocurrency look bad, remember that they want it to be that way, that's why you don't see how much the waste that paper money produce when they talk about the waste that cryptocurrency produces.