No need for charcoal

Spring is here and that means barbeque season can't be far off. Soon enough, any vaguely sunny evening (or any evening which follows a vaguely sunny day) will bring with it the smell of poorly cooked meat.

This time is not a particularly pleasant one for vegetarians who like to open their windows. Traditionally, though, it has been a good time for sellers of charcoal. Sales figures for this good ol'BBQ fuel have in years past soared by 110%* when March begins. But it seems the times they are a changin'. Now it's apparently possible to run a barbeque on a couple of pieces of lettuce, a slice of cucumber, and a bit of the old rocket:

It's sunny! I'm gonna fire up the barbeque. Get me a big bag of salad – quick!

* Guesstimate.