The process of Bitcoin mining wastes around 0.6% of the global energy.
... the climate change is something we all have been warning about, and yet nobody does anything about it...
The fact that a lot of people agrees in something that’s does not make it true. We’ve seen in history times when everybody agreed in that the Earth was flat. It was not.
This “climate change” theory is in the realm of what I call “modern anthropocentrism”. This is the idea that looks to allocate humans as the center and most important entity of the universe.
First, humans do not have that power. As much as this “climate change” religion wants human activities to be blame for changes that have always happened along the history of the Earth, there’s no data to confirm or demonstrate anything. It was the case of ancient religions that blame plagues and many other natural disasters on humans having too much sex. Well, I do not discuss other people’s beliefs, but this is what it is. Do not call it science.
There’s no even data to prove any “climate change”. Another different thing is those “scientists” have been bought to defend these theories and who’s budgets depends on linking every single “scientific study” to climate change. At the most, data started to be collected 90 years ago. Withing an Earth history of around 4.500 billion years, 90 years does not represent a considerable amount of scientific data to extract any conclusion. This data represents 2 x 10-9 of the total time history of the Earth. Would you give credit to any study that came out supported with this proportion from the total of data available in any other field? You wouldn’t and if you would, you do not understand how science works.
Respecting to the engineering side of the discussion, the so-called renewables cannot provide on their own electricity to cover demand. Renewables produce electricity independently from consumption peaks. This means, that they can be producing a lot of energy when nobody is consuming, so you must throw it away (derivate it to the ground); or when consumption is really high, they may be not producing at all (no sun, no win, etc.). Therefore, we always will need a base load that cannot depend on external factors, that can be turn on and off on real demand needs. This is where BTC mining fits in as an ancillary service to the electrical grid.
There are a lot more factors, like distribution, electrical frequency, voltage, transformations. Electrical production and distribution are still nowadays one of the most complex engineering processes ever invented. Transitioning to one system to another does not only depend on the wish of consumers, politicians or, basically, people who do not understand how electrical grids work and why they have electricity at home. We never ever had so many engineers working on solutions before. People should humble down and wait for them to come up with whatever might work.