The articles in this issue of CBTJ on sustainability (a companion to last month's issue) explore the ways that technology can be used to monitor and improve the sustainability of a wide range of processes, industrial and otherwise.

Sustainability problems often arise because of extern­alities generated by human activities. ... In the past, externalities have been difficult to control because market mech­anisms typically don’t work. However, the use of technology — for example, blockchain and satellite imagery — to monitor and verify activities provides a method of ensuring accountability for actions, both good and bad.

Deishin Lee

Guest Editor