ROME (Thomson Reuters Foundation) — It may sound like science fiction, but in a few short years the family dinner table may be laden with steak from a printer and other proteins produced from air, methane or volcanic microbes.

With the explosive success of vegan beef and burger substitutes developed by Beyond Meat and Impossible Foods, the alternative protein sector just keeps growing.

According to investment bank Barclays, alternative meat sales could reach $140 billion — or 10% of the global meat industry — within a decade, or a 10-fold increase from current levels.