Bitcoin hash rate has doubled since late 2018, currently standing at 64 million TH/s, up from the lows of 32 million, since last December.
The hash rate has also crossed the 2017 highs, which means that the Bitcoin blockchain is stronger than ever before.
![Blue chart going up after a slight correction, with a white background behind it.](https://nullfud.com/wp-content/uploads/2019/07/bitcoin-mining-hashrate-chart.jpg)
In the past, hash rate growth and price growth were correlated, and it looks like this trend may continue in the future too.
Bitcoin is up over 200% since the hash rate started to rise again.
Renewable Energy
People have been criticizing Bitcoin for Toxic Pollution and Environmental Disasters thanks to its Proof of Work algorithm; however, most of this criticism is based on thin air.
Research suggests that at least 77.6% of Bitcoin mining is done using renewable energy.
![Kraken banner with the text](https://nullfud.com/wp-content/uploads/2020/06/kraken-dive-into-crypto-trading.png)
Bitcoin mining image via Marko Ahtisaari. Licensed under CC BY 2.0.