Development of calculator to estimate avoided emissions

Design and implementation of an on-line CO2 calculator to estimate avoided emissions resulting from the reuse of certain products.

START DATE: February 2013

END DATE: November 2013

CLIENT: Spanish Association of Recoverers of Social Economy and Solidarity (Asociación Española de Recuperadores de Economía Social y Solidaria, AERESS)


Design and execution of a calculator to estimate the amount of greenhouse gas (GHG) emissions avoided through recycling and reuse. It consists of an on-line tool which allows citizens to calculate the emissions avoided by buying a second-hand product.

The phases of the project were:

  • Selection of the products for the comparative analysis. Four groups were made: clothes, furniture, domestic appliances, various. Subsequently a list was made of the most representative products in each group.
  • Search for information sources: literature search on the subject of GHG emissions in the production, reuse and recycling of the product.
  • Calculations (information treatment).
  • Design of the on-line calculation tool.
  • Balance of emissions avoided by the organizations of the Spanish Association of AERESS.
  • Creation of a methodology document.