The image shows a concrete wall

Calculation models for CO2 uptake

There are two different uptake models for CO2 in concrete on this website. These represent Tier 1 and Tier 2 according to IPCC guidelines.

The models are intended to be used for calculating the annual CO2 uptake in concrete on a national basis for reporting of national statistics such as the National Inventory Report (NIR) and for international reporting such as the UNFCCC/IPCC.

The uptake calculation models