From Brian Evans
I see we have another unusual unit of measurement to add to Feedback’s ongoing collection, in this case of carbon storage. The unit is a Humvee-year, as in “the amount of carbon stored by 1 hectare of bog is equivalent to that emitted by 325 Humvees over a year” (21 September, p 40). I’m sure we can all relate to that.
Feniton, Devon, UK
