I read about bitcoin ecological system. That system, in my opinion, isn't ecological. With not so many miners that system can to work, and we can to ignore loss energy, but with many miners, we can't to ignore it.
Do someone can make a new more ecological bitcoin alternative, or that system already done??
There are alternative cryptocurrencies that do not use mining, using a "proof of stake" scheme
instead of Bitcoin's proof of work.
However, they have security limitations that are possibly quite serious, and
are also questionable as far as their initial distribution, since no work was
done to acquire the currency.