Data in the product are expressed as GtCO2e (gigatons carbon dioxide equivalent) or MtCO2e(million tons carbon dioxide equivalent). 

Definitions for metrics included in the country and jurisdiction data product include:

Carbon stock: The amount of carbon stored in the above-ground and below-ground live vegetation biomass in a given area, expressed as the carbon dioxide equivalent

- Total carbon: The total amount of carbon stored in live vegetation across all vegetation types 

- Forest carbon: The amount of carbon stored in forested areas

- Nonforest carbon: The amount of carbon stored in all non-forested areas, excluding water and bare land features

Carbon emissions: The total amount of carbon dioxide released into the atmosphere from the loss of above-ground biomass due to landscape-altering activities 

- Deforestation: Complete clearing of forested areas to other land use or land cover types 

- Degradation: Severe alterations to forested areas from logging and road development 

- Fire: Includes both natural and anthropogenic burning of vegetation

Carbon removals: The amount of newly sequestered carbon in plant biomass

- Total: Total carbon removals for all land cover types 

- Forest: The amount of carbon sequestration in forested areas during a given time period

- Nonforest: The amount of carbon sequestration in all non forested areas, excluding excluding water and bare land features, during a given time period

CTrees’ global carbon stock data was derived from a detailed biomass inventory. CTrees used machine learning methods and change detection models incorporating several datasets, including Landsat imagery, GEDI, ICESat-1 and ICESat-2 lidar data, airborne laser scanning (ALS) data, FAO forest inventory data, NAIP imagery, and Planet Labs data. The results were validated using ground truth data. Carbon emissions and removals are estimated using carbon stock time series and activity data.

You may view all content on the website, including the country and jurisdiction data, for your personal or internal business use. You may not use CTrees data for any commercial use (e.g. re-selling, sub-licensing, making derivatives) without the prior written consent of CTrees. If you are using this data for any publication or presentation, you must cite CTrees. Please see our terms of use for full guidance.  

Data will be made available to download for free later this year. To request a data download, please fill out our contact form.

Jurisdictional estimates are aggregated from a 1-kilometer dataset and represent the sum of all values within the jurisdictional boundaries.

CTrees uses the Copernicus Global Land Service (CGLS) land cover product to define forested areas.

CTrees defined country and jurisdiction names and boundaries using the GADM database.

Land cover data is not available for certain small island states due to the resolution and limitations of input datasets,