Who is asking. Three groups push companies to do this:
How carbon is counted. Carbon accounting sorts a company's emissions into three groups:

Most of these numbers are estimates. A company takes what it used, such as units of electricity or litres of diesel, and multiplies it by a standard figure for the emissions of each unit.

What is sold. Four kinds of products make up this market:
The buyers are companies' sustainability teams, their safety teams and their plant managers. The market is young and crowded, and Indian start-ups are active in it.
Every company named here has posted software engineering jobs in India. Famous companies that don't actively hire software engineers in India are left out.
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Continue with Google- Carbon accounting, safety software and tools that cut use
Reporting and carbon accounting
Measuring emissions directly
Cutting use in the plant
Waste and carbon credits
Three companies covered mainly in other Market Segments also work here:
Most companies' carbon figures are estimates, worked out from what they spent and from averages. Regulators in Europe, and India's new carbon market, ask for more. Sensors, satellites and AI models now measure methane leaks, energy use and suppliers' emissions directly. Carbon accounting is changing from arithmetic to measurement.
Who these companies hire, and for what, is on What energy and climate tech companies hire for.