Paredes de concreto x wood framing: um estudo comparativo da emissão de CO2 na etapa de pré uso do ciclo de vida energético

Abstract

The group of scientists of the IPCC has been studying, since 1988, the variation in the global average temperature, its causes, and consequences. Modeling has shown that a variation exceeding +1,5°C (in comparison with temperatures from 1850) would imply severe environmental damage. Data from the most recent version of the IPCC Report (the AR6, from august 2021) shows this variation is already +1,09°C, and many studies and climatic events have been confirming the predictions. The scientific basis of AR6 also reinforces that the effects of humans are responsible for virtually all the observed warming, mostly led by the Carbon Dioxide (CO2). This work connects the global moment of urgency in reducing greenhouse gases emissions to the Brazilian Civil Construction, introducing and comparing one of the most common technologies in housing estates (concrete walls) and a lesser-utilized alternative (wood framing), through analyses of the material quantities of each system. The final results are estimations of the greenhouse gas emissions in each system for the pre-usage steps of the life cycle of the building, showing the impacts made possible by alternative methods – especially on a bigger scale.