- About CDIAC
- Observing Programs
Carbon Dioxide Information Analysis Center
The Carbon Dioxide Information Analysis Center (CDIAC), located at the U.S. Department of Energy's (DOE) Oak Ridge National Laboratory (ORNL), is the primary climate change data and information analysis center for DOE. CDIAC is supported by DOE's Climate and Environmental Sciences Division within the Office of Biological and Environmental Research (BER).
CDIAC's data holdings include estimates of carbon dioxide emissions from fossil-fuel consumption and land-use changes; records of atmospheric concentrations of carbon dioxide and other radiatively active trace gases; carbon cycle and terrestrial carbon management datasets and analyses; and global/regional climate data and time series.
CDIAC provides scientific and data management support for numerous projects including large-scale DOE ecosystem experiments like the Next-Generation Ecosystem Experiments; the AmeriFlux Network, continuous observations of ecosystem level exchanges of CO2, water, energy and momentum at different time scales for sites in the Americas; the Ocean CO2 Data Program of CO2 measurements taken aboard ocean research vessels; and the HIPPO project, which measured and is analyzing the atmospheric carbon cycle and greenhouse gas concentrations from pole to pole over the Pacific Ocean.
Updated global and national fossil fuel CO2 emissions estimates through 2014 are now available.
Revised (V1.1) 2016 global methane budget estimates from the Global Carbon Project are now available.
The 2016 global carbon budget estimates from the Global Carbon Project are now available.
CDIAC has updated its presentation of data from the NASA Goddard Institute for Space Studies Surface Temperature Analysis (GISTEMP), which finds that 2015 was by far the warmest year in the modern temperature record.
CDIAC has published new 13C-DIC data for the North Atlantic as NDP-096.
The second set (glodapv2) of Global Ocean Data Analysis Project data products are now available.
AGAGE updates into 2015 are now available.
Climate & Meteorology
More about CDIAC Data