<div class="htmlview paragraph">Twenty strategies to stabilize atmospheric CO₂ level are examined. Controlling the rate of CO₂ emissions first, by modest conservation and increased use of methane, is feasible; it costs little and provides a stable base for other action. Projections of CO₂ level up to the year 2100, with and without emission stabilization, make good back-drops for quantifying other controls. No method studied can control CO₂ level by limiting CO₂ output; failures are economic, ecological, or due to lack of effect. Assessments are tabulated; some are plotted.</div> <div class="htmlview paragraph">Anthropogenic Peat takes a different approach: Biomass grown to remove CO₂ from the air is digested to methane and organic residue; the residue is buried as AP to control CO₂ level and methane becomes a renewable fuel. AP can control CO₂ level at current fuel prices; as fossil fuel displacement is not required, no disruption of economies need take place. A detailed example is given.</div>