ELIMINATING SMOKE DOES NOT NECESSARILY CUT CARBON EMISSIONS
Land-clearing techniques exist that do not produce smoke, including biological methods to accelerate decomposition and various mechanical techniques that chip or shred biomass, either for mulching on the site or for transport off site for disposal or sale. All of these `no-burn' techniques presently are more expensive than burning. Moreover, as noted above, burning produces many benefits for land users.
Research may be able to reduce the economic and technical disadvantages (compared to burning) of certain techniques, such as mulching. If they are feasible, policies to regulate the timing of burning and new techniques for land clearing without burning could-over time- address part of the regional smoke problem.
However, it must be emphasized that unless a significant portion of the biomass from land clearing is used to manufacture wood products with a long useful life (instead of simply decaying), these measures will only have a short-term effect on C emissions.
Moreover, the attractiveness of technological alternatives to clear land without burning, or the level of subsidies required for adoption of these techniques, also are infuenced by national policies, such as timber export taxes.
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