Greenhouse gas (GHG) emissions from using Chinese steel in the U.S. are significantly greater than that of comparable steel made in North America, according to a series of reports by the Steel Market Development Institute (SMDI), a business unit of the American Iron and Steel Institute (AISI).
Two peer-reviewed reports (one in North America and another in China) compared hot-dip galvanized (HDG) steel coils produced in North America to the same product produced in China and shipped to the North American market. This type of steel is primarily used in the construction and automotive sectors.
The study found that hot-dip galvanized coil sourced from China results in nearly 50% higher GHG emissions. “In the sustainable design of steel-framed buildings, one of the most important decisions an owner or architect can make regarding environmental impact is to ensure the building’s steel is produced in North America,” said Mark Thimons, vice president of sustainability for SMDI.
Thimons cited an example from another SMDI study involving the design of a four-story cold-formed steel office building in Minneapolis in which the building core and shell includes about 100 tons of HDG. If steel from China was used for this building instead of North American-produced steel, the GHG emissions associated with the production of the steel would increase by more than 100 tons (CO2eq).
Related Stories
Codes and Standards | Jan 18, 2022
Greater emphasis on building materials needed to achieve net-zero carbon offices
Engineered wood, straw, and bamboo can be keys to achieving goal.
Codes and Standards | Jan 17, 2022
AISC seeks comments on draft earthquake standard for steel buildings
Includes new limits for cross-sectional slenderness of steel columns based on latest research.
Codes and Standards | Jan 12, 2022
California’s wildfire building code significantly reduces structural loss
As other states consider upgrading their codes, Golden State provides useful model.
Codes and Standards | Jan 12, 2022
Regulator holding back climate-friendly, energy-saving equipment deployment, critics say
Heat pumps, solar power could be made more accessible for low-income communities in Massachusetts.
Codes and Standards | Jan 11, 2022
Cost hikes drive nearly one million renters out of homeownership qualification in 2021
Household income needed to pay a mortgage rose to $62,872 from $55,186.
Codes and Standards | Jan 10, 2022
New ratings services focus on climate risk for homeowners
Efficacy of models used in risk assessment varies.
Codes and Standards | Jan 6, 2022
Virginia contractors having a tough time finding diverse subs to meet state goals
Survey of primes may indicate similar issues at federal level.
Codes and Standards | Jan 5, 2022
Boston drops parking requirements for affordable housing
Measure expected to spur new projects.
Codes and Standards | Jan 4, 2022
Dept. of Energy Better Climate Challenge aims for 50% GHG emission reduction by 2030
Program offers technical assistance and peer-to-peer knowledge sharing.
Codes and Standards | Jan 4, 2022
Architects at New York firm take steps to unionize
Support for unionization reported at two other New York firms.