US Energy-Related CO₂ Emissions (EIA, Monthly)

## What this measures

Carbon dioxide emitted by energy consumption in the United States each month, across coal, natural gas and petroleum and all sectors, in million metric tons of CO₂. It is the total of the Monthly Energy Review's carbon dioxide table (series TETCEUS). Monthly since January 1973.

## Why it matters

Energy use is the source of most US greenhouse gas emissions. This is the fastest official read of whether US emissions are rising or falling, months ahead of the annual inventories.

## How to read it

Lower is less. It is seasonal, with higher readings in winter heating and summer cooling months, so compare the same month across years or the 12-month total.

## What it does not say

It covers CO₂ from energy only: methane, nitrous oxide, fluorinated gases, industrial process emissions and land use are outside it. It is published with a lag of about three months, and recent months are estimates that EIA revises.

## Source

US Energy Information Administration, Monthly Energy Review, carbon dioxide emissions from energy consumption (series TETCEUS), via the EIA Open Data API v2 (route total-energy). https://www.eia.gov/totalenergy/data/monthly/. US federal data, public domain.