US study challenges regional reduced-CO2 concrete benchmarks

US: A joint study by the University of Colorado Boulder and Pennsylvania State University has demonstrated a lack of ‘granularity’ to regional benchmarks for the use of reduced-CO₂ concrete, while recognising the benchmarks as a ‘promising starting point.’ The team found that regional global warming potential (GWP) targets may be less attainable outside of metropolitan areas. The researchers noted that two cities – Los Angeles and New York – hold 41% of concrete environmental product disclosures (EPDs). In addition to a lack of access to concrete with EPDs, builders outside of the country’s cities face an increased burden of emissions due to transport.