Bitcoin and pollution.
Bitcoin encourages the use of digital currencies as an alternate mode of payment. As a result, money, in form of coins and bills, are minimized. As we know, bills and coins comes from paper and metals, respectively. Paper from trees. Metals from mining. If bitcoin is widely used, less trees are cut and less mining! Pollution is lessen!
STOP POLLUTION! MORE BITCOIN!
Actually since bitcoin is out, the electricity spent has rising over the roof, especially in 3rd world or developing countries where electricity costs are much lower.
Yes, it really a serious problem for Miners and for the country also, as the electricity which is been used for bitcoin mining by the mining network is really high and this electricity can be used for some other purposes also if the consumption decreases to some extent. The solution for this is that we need to replace this electricity with renewable energy something like either Solar energy or Mechanical energy or we can also develop our processing systems and units by which we can start consuming lesser energy. I have found an article that shows you that Bitcoin mining consumes more electricity a year than Ireland.
https://www.theguardian.com/technology/2017/nov/27/bitcoin-mining-consumes-electricity-irelandI think the use electricity for Bitcoin mining not a big deal for environment since electric can obtain from renewable resource like water, heat, wind. For country can be focused to bigger problem like waste paper / plastic / vehicle polution that can demage badly for environment
Yes electricity can be obtained from energy but what about the costs then? If you are living in a first world country how much would you be spending by paying electricity compared to a third world country? Short term wise, this problem is not a small matter. Every miner wants to keep their costs low and get their profits higher. And this, I believe is what most countries are also concerned of.