OneLessTonne is not a detailed emissions calculator, but it will show you the typical greenhouse gas emission reductions and energy cost savings associated with each action you choose.

Calculations for OneLessTonne rely on the most current and accurate data available. Most notably:

  • Natural Resources Canada, 2007. Energy Use Data Handbook [external link], 1998-2005.
  • Environment Canada, 2007. National Inventory Report, 1990-2005: Greenhouse Gas Sources and Sinks in Canada.

OneLessTonne is a program of the Pembina Institute, an independent, non-profit organization that seeks to advance sustainable energy solutions through innovative research, education, consulting and advocacy.