# CO2 emissions of business travels with Carbon Interface API: n8n workflow

> Started by an arriving email, and works across Gmail and Google Sheets. It hands the judgement calls to OpenAI.

Source: https://millionrounds.com/workflow/co2-emissions-of-business-travels-with-carbon-interface-api (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Data collection](https://millionrounds.com/workflows?category=Data+collection#library)

# CO2 emissions of business travels with Carbon Interface API

Started by an arriving email, and works across Gmail and Google Sheets. It hands the judgement calls to OpenAI. 9 steps, 1 loop or waits: a working afternoon to understand properly.

Medium Calls a model: OpenAI

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fco2-emissions-of-business-travels-with-carbon-interface-api)

**9 steps** Medium: a working afternoon

**0** Branches: places the flow splits

**1** Loop or waits

**2** Services it connects to

## The flow

Starts it 1 Model 3 Logic 2 Service 3

The steps in the order they run, from what starts it.

- 1 **Gmail Trigger** Gmail trigger *Starts it*
- 2 **Structured Output Parser** Output Parser Structured *Model*
- 3 **OpenAI Chat Model2** Lm Chat Open Ai *Model*
- 4 **AI Agent Parser** Agent *Model*
- 5 **Split Out** Split Out *Logic*
- 6 **Loop Over Flights** Split In Batches *Logic*
- 7 **Record Flights Information** Google Sheets *Service*
- 8 **Collect CO2 Emissions** Http Request *Service*
- 9 **Load Results** Google Sheets *Service*

## How it's built

- **Starts on:** An arriving email
- **Steps:** 9, 1 loop or waits
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail, Google Sheets
- **Model:** OpenAI

## Questions

What does it need to run?

An n8n account, plus your own Gmail and Google Sheets accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an arriving email.

Does it use AI?

Yes. It calls OpenAI. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 9 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 9 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fco2-emissions-of-business-travels-with-carbon-interface-api)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)

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Also data collection, with the same services where possible, closest in size first.

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- [**Analyze Amazon purchase trends with Bright Data and OpenAI** 9 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/analyze-amazon-purchase-trends-with-bright-data-and-openai)
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- [**Analyze skill gaps from LinkedIn jobs with BrowserAct** 9 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/analyze-skill-gaps-from-linkedin-jobs-with-browseract)