The carbon cycle

Statistics report on the carbon cycle

The carbon cycle

This report presents a range of statistics and facts relating to the carbon cycle. The carbon cycle is a natural process that explains how carbon moves between various ecosystems and ecological spheres across the world. Understanding this process is essential to understanding some of the basic mechanics of climate change, particularly, how carbon that was removed from the carbon cycle thousands or millions of years ago is now being reintroduced via the extraction and burning of fossil fuels, and this offsets the natural balance that has existed in nature for millennia, accelerating climate change. Additional topics that are covered include the roles of the oceans, soil, plants, and other carbon sinks in the carbon cycle.

Table of contents

Overview

5
  • Basic Statistic Estimate composition of the Earth's atmosphere
  • Basic Statistic Annual global carbon emissions and uptake by broad source 2010-2019
  • Basic Statistic Total global carbon emissions and absorption 1750-2019
  • Basic Statistic Global carbon stocks by broad source 2010-2019
  • Basic Statistic Fossil fuels carbon content by type

Carbon sinks

7
  • Premium Statistic Amount of carbon stored in selected ecosystems 2022
  • Basic Statistic Share of CO2 emissions absorbed by land and ocean sinks by 2100, by scenario
  • Premium Statistic Annual carbon flux in forest worldwide 2001-2023, by climate domain
  • Premium Statistic Global forest carbon stock and carbon density 1990-2020
  • Basic Statistic Average global ocean pH level 1985-2022
  • Basic Statistic Global annual methane emissions and sinks 2008-2017, by source
  • Basic Statistic Thawed permafrost area 2030, by scenario

Land use change

4
  • Premium Statistic Global tree cover loss 2001-2021, by climate domain
  • Basic Statistic Tree cover loss in Brazil 2023, by cause
  • Premium Statistic Palm oil land use worldwide 2000-2022
  • Premium Statistic Global greenhouse gas emissions on agricultural lands 1990-2021

Emissions

9
  • Basic Statistic Annual global emissions of carbon dioxide 1940-2023
  • Premium Statistic Global cumulative CO₂ emissions from fossil fuels and land use 1850-2022, by country
  • Premium Statistic Global carbon dioxide budget from anthropogenic sources 2010-2020
  • Basic Statistic Global atmospheric carbon dioxide concentration 1959-2023
  • Basic Statistic Global share of methane emissions 2023, by sector
  • Premium Statistic Global warming potential (GWP) 2021, by gas type
  • Basic Statistic Global GHG emissions by gas 1970-2010
  • Premium Statistic Global GHG emissions from select material production 2019
  • Basic Statistic Global average atmospheric abundance of methane 1990-2024, by month

Climate change

3
  • Basic Statistic Global land and ocean temperature anomalies 1880-2023
  • Basic Statistic Global ocean temperature anomalies 1880-2023
  • Basic Statistic Projected temperature increase worldwide 2100, by scenario

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