47% of global CO2 emission caused by building & construction
The built environment generates nearly 50% of annual global CO2 emissions. Of those total emissions, building operations are responsible for 27% annually, while building materials and construction (typically referred to as embodied carbon) are responsible for an additional 20% annually.
11% of global CO2 emission from food waste
A new report by WWF and Tesco updates our understanding of just how much food we waste by quantifying the total amount of food lost on farms globally and adding it to the latest estimates at other points of the supply chain. And these new numbers add up to a shocking picture: we now know that we are wasting 1.2 billion tonnes more food than previously estimated.
Green construction, process counts?
Yes. Although green construction operation process and materials simplifies on-site processing and reduce on-site CO2 emission, the process of making prefabricated modules and materials counts.
High energy usage
Green construction materials are usually recycled and fabricated with the same or a mixture of substances. The process takes up a lot of energy to reproduce and this is literally against energy saving and CO2 reduction.
High logistics cost
Fabricated materials and modules usually require large transportation which reflects high transportation cost thus larger amount of CO2 reduction.
Reliability & other emissions
Recycled products usually are with less reliability and durability, especially plastic and wood. In addition, the recycling process for plastic will usually cause toxic emission which is harmful to human and environment.
A truly green construction material is not to replace, is to integrate