Meta analysis of biochar's effectiveness

This is a huge article. Quite sciency, it's written as an academic paper. Lots of useful information.  Covers some things not frequently talked about here, such as biochar's role in limiting negative impacts of heavy metal toxins.  Covers many research papers over many years in many places using many different methods.
John S
PDX OR

https://onlinelibrary.wiley.com/doi/full/10.1111/gcbb.12885

That's a great article. Thank you for sharing!