David Olefeldt’s research team, seeking to understand how much Canada’s peatlands will add to global greenhouse gas emissions, explores the diverse landscapes of Northern Alberta and the Northwest Territories — Peatland regions cover much of northern Canada with mounds of vegetation, pools of stagnant water, sparse coniferous forests and ribbons of colourful mosses, shrubs, flowers and grasses. Peatlands have many names, including bogs, fens, marshes and swamps, and they are a primary source of peat, a type of dark, moist…