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Once you've gone through the trouble of gathering all of your data and crunching the numbers, many companies get stuck on how to most effectively communicate their carbon footprint results. Should you do a press release? Put it on the company website? Participate in the Carbon Disclosure Project (CDP) Report process?

There are lots of ways to share the results of your carbon footprint. But before you jump into particular communication channels, it's essential to decide what aspects of the data you want to highlight. Here's our take on the four most critical elements to share:

1. Your absolute greenhouse gas (GHG) emissions.

This is the total metric tons of CO2-e that your company is responsible for over a given time period (usually a year). Be sure to divide it up between Scope 1 (direct emissions -- like natural gas), Scope 2 (indirect emissions – like electricity), and Scope 3 (indirect emissions -- value chain activities such as employee commuting, business travel, and waste).

2. Your adjusted GHG emissions.

Absolute emissions are important, but they lack context. You should also choose a relevant way to adjust for your company's specific operations. This might mean looking at carbon-per-employee, carbon-per-revenue, carbon-per-sales, or carbon-per-production-unit.

3. Emissions over time.

For both absolute and adjusted emissions, it's helpful to show a track record -- three years is considered the minimum, while five years or more is considered the “best practice.” (Of course, if you've just started calculating your annual carbon footprint, you won't have a 3-year track record yet!). By showing how your carbon profile changes over time, you'll give stakeholders an idea of your future trajectory.

4. Your carbon footprint story.

Don't just put up the numbers…explain them. What boundary did you draw around your footprint (e.g. what operations and activities were included)? Why are your numbers going up (or down)? How have changes to your business operations (like acquisitions, mergers, divestments, layoffs, expansions, etc.) affected your emissions profile? What are you expecting to see in the future? A few paragraphs of explanation will make a world of difference in your communications.

Once you have the pieces in place, what are the best vehicles for sharing your carbon footprint information? We've listed our favorite options below -- and we'd love to hear your opinions in the comments section!

Website -- great as an all-purpose communications vehicle, for internal and external stakeholders. Example: Nestle
Visual infographic -- more interesting than a simple chart (when done correctly). Example: Microsoft
Press release -- a traditional way to announce timely news and to drive readers to your website, your sustainability report, and other communications. Example: Green Century Funds
Employee all-hands meeting -- a personal touch can go a long way in generating enthusiasm and buy-in among all levels of staff. Example: Megamas Training Company
Sustainability report -- the standard “best-practice” way to share not just your carbon footprint, but also other social and environmental performance. Example: Coca Cola (and note their disclosure about carbon recalculation at the bottom!)
Social media – by making the dialogue related to carbon calculations more social, companies can take their disclosure to the next level. Example: SAP

Find out how you can become a better sustainability leader in one of our latest blogs.