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Most of our air emissions come from burning fuel to produce energy. Our air emission accounting is most often based on emission factors and actual or estimated production levels at each site, making these numbers challenging to roll up and compare across the company or year-to-year. We noticed our emissions were changing more from accounting practices and revisions to emission factors rather than from actual process changes.

In 2015, we decided to remove our air emission reduction target from our 2020 sustainability goals and focus on facility-level improvements and meeting new, stricter air-quality regulations.

We remain committed to sharing our companywide air-quality data and continue to work on additional reductions, including significant upgrades to many of our facilities to comply with new regulations limiting hazardous air pollutant emissions from boilers and process heaters.

Many of our improvements are the result of process modifications and the use of lower-emitting additives as well as pollution-control equipment that captures or destroys significant amounts of emissions. In 2016, we made additional capital investments at several of our mills to continue to reduce our air emissions — including cleaner burning units, energy optimization and upgrades to emission control systems.

View Our Air Emissions Data


The best of both worlds: Continuous drying kilns

In 2016, our Millport, Alabama, sawmill became our eighth mill to use a continuous drying kiln.

Instead of replacing boilers and steam-batch kilns, we've installed continuous drying kilns that are more energy-efficient, less costly to maintain and process more lumber, faster.

These capital projects help us meet strict air quality standards and improve profitability at the same time, the best of both worlds.

Just last year, we saw a 23 percent decrease in carbon monoxide emissions from the previous year and we're seeing greatly improved mill productivity at the same time.