1. mining is already becoming more sustainable. the hashrate/watt is getting more efficient all the time. imagine hashing 100exahash using GPU and you will see that if we didnt develop ASICS the electric use would be much much much much(not exaggerating) higher
take for instance 9GPU rig vs a antminer s9 . (same electric use)
900mhash(gpu) vs 14thash
yep ASIC is 15,555x more efficient than GPU
2. bushfires are not caused by mining... if it was then china and georgia would be on fire. not the amazon/australia.
the reason the amazon and australia burn is due to the lack of water. carbon is a lung health issue because the 'greenhousegas' actually shows the upper atmosphere is cooling. yep its cooling. heat rises and more is getting released into the atmosphere rather than being reflected back in.. because the greenhouse affect is not reflecting much back.... at ground level the reason why not as much heat is getting evaporated into the air is lack of water. yep the water cycle has more problems than carbon.
3. snow at christmas... i think you have been watching too much cocacola adverts and fairy tale books making people think they remember snow at christmas every year.. truth is snow is more of a february period.
in england we have historical data that in the last 60 years we only had 9 times of a white christmas but many more of a white february. even things like the london 'frost fair' in the 1800's was in february.
what you find out is things like the cartoon 'the snowman' (nothing to do with christmas the author says) is featured on tv at christmas. even things like the movies 'frozen' 1&2.(again nothing to do with christmas) are released around the november/december period.
did you know most christmas movies are not filmed at christmas. but filmed using fake snow and people celebrating christ while outside the studio its summer. yep snow on TV is usually fake snow.. paper mache
...
summary. dont take media's opinion on how things are. actually do the math find the stats and actually really think about whats being presented to you
Well if anyone sticks on these it is better than it was / others do worst kind of arguments we are in bad shape.
As a mother, I use bitcoin because I think it will bring a better world to my children.
At the same time, as an engineer, my opinion is that it will be an epic failure if such hashpower cant do more than just secure bitcoin blockchain.