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Team
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Zhu Liu
is the Principle Investigator and Associate Professor at Tsinghua University, and Associate at California Institute of Technology and Harvard University.
Philippe Ciais
is a researcher at the Laboratoire des Sciences du Climat et de l’Environnement, near Paris in France.
Steve Davis
is a Professor of Earth System Science and Civil and Environmental Engineering at the University of California, Irvine.
Zhu Deng
is a PhD Student at Tsinghua University. He is in charge of the model development and organizing routine updates of the database.
Yilong Wang
is an assistant researcher at the Institute of Geographic Sciences and Natural Resources Research of the Chinese Academy of Sciences. He is in charge of the ground transportation sector emissions calculations and updates.
 
 
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Disclaimer
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Carbon Monitor data are made freely available to the public with a fair use open data policy. We encourage users to cite the data by this paper. Carbon Monitor is a living dataset subject to updates and the values are expected to change, as new data get included. In the process of updating our daily CO2 emission products, errors may be corrected, revisions may be made in the calculation methods, and new information may be used. Data files available for download and graphs are associated to a day of release. In case of questions regarding data and history previous releases, please contact us at contact.carbonmonitor@gmail.com. All information displayed and provided can be used at the own responsibility of users, and does not engage any responsibility from research institutions supporting Carbon Monitor and partner institutions.
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Partners
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Carbon dioxide (CO2) emissions from the use of fossil fuels and the production of cement are the main driving force of climate change. Carbon Monitor is an international initiative providing for the first time regularly updated, science-based estimates of daily CO2 emissions. The data reveal the drop and re-growth of emissions during the COVID-19 pandemics.
Latest news
Year in Review: Global carbon emissions in 2023
04/04/2024
Global CO2 emissions for 2023 increased by only 0.1% relative to 2022 (following increases of 5.4% and 1.9% in 2021 and 2022, respectively), reaching 35.8 Gt CO2. Check our comment on Nature Reviews: Earth & Environment
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Choose a visualisation of CO2 emissions
Year in Review: Global carbon emissions in 2023
April 4<sup>th</sup>, 2024
Global CO2 emissions for 2023 increased by only 0.1% relative to 2022 (following increases of 5.4% and 1.9% in 2021 and 2022, respectively), reaching 35.8 Gt CO2. Check our comment on Nature Reviews: Earth & Environment
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Carbon Monitor: data release and updates
October 28<sup>th</sup>, 2023
Carbon Monitor official data release with countries and sectors CO2 emissions changes up to the end of 2023.
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Carbon Monitor: data release and updates
August 23<sup>rd</sup>, 2022
Carbon Monitor official data release with countries and sectors CO2 emissions changes up to July 31 2022. Global CO2 emissions increased 1.7% in the first 7 months of 2022 compared to the same period of 2021; China has dropped 3.4%, while pronounced increases are found in the US, Europe, and India.
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New publication : the story of 2020 in Nature Geosciences
June 29<sup>th</sup>, 2022
By how much and where CO2 emissions droped and began to rebound in the year 2020
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Carbon Monitor: data release and updates
June 29<sup>th</sup>, 2022
Carbon Monitor official data release with countries and sectors CO2 emissions changes up to May 31 2022. Global CO2 emissions increased 1.1% in the first 5 months of 2022 compared to the same period of 2021; CO2 emissions in China dropped 4.1% in this period.
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Carbon Monitor: data release and updates
May 7<sup>th</sup>, 2022
Carbon Monitor official data release with countries and sectors CO2 emissions changes up to March 31 2022. Note that, in this release, we update our methods to estimate the daily emissions in several sectors. Click the "Read" button for details
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Comment article: Emissions rebound from the COVID-19 pandemic
March 31<sup>st</sup>, 2022
Global CO2 emissions in 2021 were only 1% less than the record levels of 2019. Is this resumed growth in fossil energy, or a final fleeting surge before a long decline? Check our comment on Nature Climate Change
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Comment article: Monitoring global carbon emissions in 2021
March 21<sup>st</sup>, 2022
2021 emissions consumed 8.7% of the remaining carbon budget for limiting anthropogenic warming to 1.5 °C, which if current trajectories continue, might be used up in 9.5 years at 67% likelihood. Check our comment on Nature Reviews: Earth & Environment
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Carbon Monitor : data release
February 2<sup>nd</sup>, 2022
Full year data of 2021: Carbon Monitor official data release with countries and sectors CO2 emissions changes up to December 31 2021
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Carbon Monitor : data release
January 11<sup>th</sup>, 2022
Carbon Monitor official data release with countries and sectors CO2 emissions changes up to November 30 2021
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Carbon Monitor : data release
December 5<sup>th</sup>, 2021
Carbon Monitor official data release with countries and sectors CO2 emissions changes up to October 31 2021
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The members shine in the Global Youth Summit on Net-Zero Future
November 19<sup>th</sup>, 2021
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Carbon Monitor : data release
October 28<sup>th</sup>, 2021
Carbon Monitor official data release with countries and sectors CO2 emissions changes up to September 30 2021
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Carbon Monitor : data release
October 2<sup>nd</sup>, 2021
Carbon Monitor official data release with countries and sectors CO2 emissions changes up to August 31 2021
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Carbon Monitor : data release
August 30<sup>th</sup>, 2021
Carbon Monitor official data release with countries and sectors CO2 emissions changes up to July 31 2021
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New publication: Carbon Monitor maps of emissions
August 27<sup>th</sup>, 2021
A new publication has been submitted with the first near real-time global CO2 emissions maps, in collaboration with the EDGAR team in Europe: check it out at the link below
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Carbon Monitor : data release
August 20<sup>th</sup>, 2021
Carbon Monitor official data release with countries and sectors changes up to June 30 2021
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Data featured in ClimateWire
June 1<sup>st</sup>, 2021
Global carbon dioxide emissions were up 7.4% through the first four months of the year, according to Carbon Monitor, an academic research project that monitors daily CO2 output worldwide.
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Carbon Monitor data featured in Le Monde
March 30<sup>th</sup>, 2021
Data from Carbon Monitor and the Global carbon Project shown to explain the emissions drop and quick restart in 2020
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Data featured in New York Times
March 8<sup>th</sup>, 2021
According to figures from Carbon Monitor, an international initiative that provides estimates of daily CO2 emissions, worldwide emissions from aviation fell by nearly 50 percent last year — to around 500 million metric tons of CO2, down from around 1 billion metric tons in 2019
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Carbon Monitor : data update
February 20<sup>th</sup>, 2021
US data update based on our latest state-level estimation. The US state-level data and methods will be released soon.
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Carbon Monitor : data release
January 22<sup>nd</sup>, 2021
Carbon Monitor official data release with countries and sectors changes up to December 31st 2020.
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Highlighted again in Nature
January 15<sup>th</sup>, 2021
A new highlight in Nature of the Carbon Monitor data, explaining how emissions have changed during the entire year 2020
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On the smaller impact of second wave on emissions
December 15<sup>th</sup>, 2020
New research led by Yilong Wang shows that despite high cases & new lockdowns in Europe, traffic emissions were little affected during the second wave. It proves that stringency index is not a robust proxy of emissions reductions through the entire year.
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New publication on carbon abatement in Spain using Carbon Monitor data
December 4<sup>th</sup>, 2020
Natalia Fabra at Universidad Carlos III in Madrid and co-workers analyzed degrowth versus decoupling competing strategies for carbon abatement in Spain using Carbon Monitor data, in this working paper
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Science Advances - drop and rebound of China's emissions
December 3<sup>rd</sup>, 2020
Bo Zheng and co-workers combined Carbon Monitor and satellite NO2 observations to analyze the drop and rebound of industrial CO2 emissions in different provinces of China
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New publication from NASA with Carbon Monitor data
November 29<sup>th</sup>, 2020
Brad Weir at NASA and co-workers submitted paper on regional Impacts of COVID-19 on carbon dioxide detected worldwide from space using Carbon Monitor data
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Carbon Monitor : data release
November 20<sup>th</sup>, 2020
Carbon Monitor official data release with countries and sectors changes up to October 31st 2020. The next release will be in the second week of December
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Carbon Monitor : data release
October 23<sup>rd</sup>, 2020
Carbon Monitor data release up to September 30th, 2020. Emissions in many countries have returned to pre-pandemic levels, but remain below average in others (e.g., the U.S., Brazil and India)
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Geophysical Research Letters publication with Carbon Monitor data
October 21<sup>st</sup>, 2020
Frédéric Chevallier & co-workers used atmospheric CO2 measurements from the OCO-2 sattelite, a global transport model and Carbon Monitor daily emissions to analyze the atmospheric signals of reduced emissions
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Nature Scientific Data - The reference data description paper of Carbon Monitor
October 9<sup>th</sup>, 2029
Full details and traceability on the methods, data sources and evaluation of the Carbon Monitor system providing daily near real time CO2 emissions
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Nature Communication - Carbon Monitor methods, results and perspectives
October 14<sup>th</sup>, 2020
Zhu Liu and co-workers present daily near real time CO2 emissions. New insights on country- and sector-level effects of the COVID-19 pandemic on CO2 emissions from January to June. The job is done and the job continues.
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Carbon Monitor highlighted at the IAEA Scientific Forum on Nuclear Energy for Climate
September 24<sup>th</sup>, 2020
The Forum session on Innovations for Achieving a Clean Energy Transition invited Carbon Monitor to present changes of CO2 emissions and power sector changes during 2020.
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Carbon Monitor Presented at the 4th ICOS Science Conference
September 23<sup>rd</sup>, 2020
Carbon Monitor presented at a session of the 4th ICOS Science Conference on the effect of COVID-19 on CO2 fluxes. Other presentations showed atmospheric concentration changes based on urban flux towers.
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Carbon Monitor : the fourth data release
September 22<sup>nd</sup>, 2020
Carbon Monitor data release up to August 31st, 2020. Lockdown restrictions in many countries have eased and emissions in some countries have returned again at pre-pandemic levels, but remain below average in the U.S., Brazil and India
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Carbon Monitor : the third data release
August 20<sup>th</sup>, 2020
Carbon Monitor data release with daily emissions up to June 30th, 2020. Lockdown restrictions began to ease in many countries and emission deficits are observed to become smaller compared to the same period in 2019.
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Carbon Monitor : the second data release
July 12<sup>th</sup>, 2020
Carbon Monitor data release up to May 31st, 2020. Emissions appeared to bounced back to their 2019 levels in China, but remain strongly reduced in India, US, Europe and Brazil
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NOAA Global Monitoring Laboratory
July 10<sup>th</sup>, 2020
Carbon Monitor results on recent and ongoing CO2 emissions changes during the COVID-19 period and their implications for CO2 and pollutant concentrations changes were presented during a session on Local and Regional Sources of Pollution and their Impacts
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New analysis of traffic CO2 emissions in global cities through mid-June
June 21<sup>st</sup>, 2020
New analysis by Yilong Wang, researcher at the Chinese Academy of Sciences shows dramatic effects and differences of lockdowns on CO2 emissions from road traffic in global cities, now recovering.
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Carbon Monitor : the first data release
June 17<sup>th</sup>, 2020
Carbon Monitor first data release with daily CO2 emissions from six sectors up to April 30th, 2020. The largest reduction is found in the transportation sector and the largest relative reduction of all-sectors emissions in Spain & Germany compared to the same period in 2019.
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Carbon Monitor featured in Nature and articles
June 17<sup>th</sup>, 2020
Carbon Monitor data was featured in the journal Nature in a news article on how COVID-19 lockdowns have affected global CO2 emissions. Scientific papers detailing the data and results are available from the METHODS menu
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Carbon Monitor in Chinese
June 17<sup>th</sup>, 2020
Our mirror site in Chinese and other languages provides detailed information about recent changes of CO2 emissions in Asia for different sectors. Information on the emissions of pollutants co-emitted with fossil fuel burning will be updated.
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Emissions in China have snapped back to their 2019 level
June 17<sup>th</sup>, 2020
Recent Carbon Monitor data combined with spaceborne NO2 observations show that after the end of the lockdown in China, emissions returned to pre-pandemic levels in the provinces with the most industrial activity
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CO2 emissions record drop during pandemics (Scientific American)
May 20<sup>th</sup>, 2020
"Scientists sought to reject claims that emissions reductions from COVID-19 are a silver lining. The magnitude of reductions has to be similar but to persist over time and can’t be as disruptive" said Steven Davis, U. California, Irvine
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Emissions drop during pandemic, an unexpected challenge (The Hill)
May 14<sup>th</sup>, 2020
"The 9 percent drop cited in the IEA report would put the U.S. on track to meet its Paris climate accord goals, but only if it kept that up beyond 2020. 'We’d need to do it year after year " said Steven Davis, from U. California, Irvine.”
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