CO2 emissions should be seen from the right perspective. In relation to other everyday objects, the emissions from an energy efficient brick building are very low.
The energy required for production, and the CO2 emissions from this process, represent only one chapter of the story. When the whole service life of the building is taken into consideration, the impact of clay building materials on the environment is very low. 90% of the overall CO2 emissions from a building arise during the usage phase – including maintenance and deconstruction – only 10% arise during construction.
CO2 emissions should be seen from the right perspective. In relation to other everyday objects, the emissions from an energy efficient brick building (constructed in line with the e4 principles: economy, energy, ecology and emotion) are very low. For example, in the course of a year, a cow produces 8.7 times more CO2 emissions than an energy efficient brick house, and one aeroplane produces 870 times more CO2!