Present and historical Nitrous Oxide N2O levels

Atmospheric N2O Levels Graph

This graph features atmospheric nitrous oxide levels and temperature that combine measurements from as far back as 800,000 years up to the present day. The graph is customizable and can be resized, printed, or pasted into your website. This is a free service, but we do ask for a donation if you find this useful. This is a project of the 2 Degrees Institute, a non-profit organization.

An atmospheric nitrous oxide graph for researchers and educators

Key features

Real-time and Historical data

Since 1978, globally-averaged N2O levels have been collected and updated monthly as new samples are added to the analysis. For the most recent data for 2023 preliminary data from the slopes of Moana Loa, Hawaii is used. Prior to 1978, N2O levels have been extracted from ice core data from Antarctica. Temperature overlay as well as the ability to switch to other greenhouse gases are available from the graph menu. Learn more about the data sources.

Free Nitrous Oxide Levels Graph

This interactive graph is free to use on your website. Simply choose your color theme and then copy and paste 2 lines of code. Data and source code is hosted on our servers so you do not have to worry about using up your server's bandwidth. New N2O measurement data is updated automatically when new data becomes available and temperature data is updated monthly.

Zoomable and Printable

View atmospheric N2O levels over a span of thousands of years or zoom to specific time periods. Use your fingers to pinch and zoom on a handheld device or use a mouse with a computer. Export the chart to PNG, JPG, PDF or SVG format with the click of a button or print the chart directly from the web page.

Customizable and Responsive

Choose from 4 color themes to match your website's look and feel. Customize the width and height of your graph or have it fill your entire screen. The nitrous oxide graph is responsive and can automatically resize to fit whatever device or screen size it is being viewed on.

You may enjoy this software for free under a Creative Commons (CC) Attribution-NonCommercial licence.
Real-time and historical Nitrous Oxide data combined.

Data Sources

You may enjoy this software for free under a Creative Commons (CC) Attribution-NonCommercial licence.
Getting the Data Right.

Our Team of Scientific Advisors

Dr. Pieter Tans
NOAA's Earth System Research Laboratory

Dr. Jeremy Shakun
Boston College

Dr. Geoff Dutton
NOAA's Earth System Research Laboratory

Dr. Ed Dlugokencky
NOAA's Earth System Research Laboratory

Watch this educational video.

Climate data in the ice core record

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