CAIT is one of the most trusted sources of climate data available. It is a free and open source for comprehensive and comparable climate and emissions data. CAIT is made up of a suite of tools that allow users to utilize the data to understand considerations of equity in climate negotiations, see transparency and available information in country climate action comitments, interact with historic emissions data, and dive into the methodologies behind future emissions projections. CAIT allows national governments, international organizations and independent researchers to perform relevant analysis and promote efficient action on climate change.

CAIT Tools

Historic Emissions

CAIT Historic allows for easy access, analysis and visualization of the latest available international greenhouse gas emissions data. It includes information for 186 countries, 50 U.S. states, 6 gases, multiple economic sectors, and 160 years - carbon dioxide emissions for 1850-2012 and multi-sector greenhouse gas emission for 1990-2012.

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Paris Contributions Map (INDCs)

The CAIT Paris Contributions Map enables users to explore, compare, and assess the transparency of mitigation information provided by Parties (countries) in their Intended Nationally Determined Contributions (INDCs). The CAIT Paris Contributions Map will be updated as new INDCs are released throughout 2015.

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Pre-2020 Pledges Map

The CAIT Pre-2020 Pledges Map highlights pledges that were submitted by countries to the United Nations Framework Convention on Climate Change (UNFCCC) in 2009 and 2010, outlining actions countries would take by 2020.

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Emissions Projections

The CAIT Projections module provides ready access to emission projections for major emitters through the year 2100 (if data is available). In addition, this tool aims to increase the transparency of each scenario by publishing key assumptions and other related information.

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Equity Explorer

The Equity Explorer helps visualize the many dimensions of climate equity in the context of the international climate negotiations. It presents a holistic view of climate equity that can be used in the development of individual climate contributions.

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Google Public Data Explorer

Dive deeper into the CAIT Historic Emissions data with the Google Public Data Explorer. Use it to compare country-level and region-level emissions by gases, sectors, per capita information, GDP and other socio-economic indicators.

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Our ability to harness ever-expanding amounts of data is completely transforming our understanding of environmental problems and solutions. Our Climate Insights blog series leverages data from CAIT to shed light on the many dimensions of climate change that shape society, policy, and global development.

6 Graphs Explain the World’s Top 10 Emitters

Recent data reveals only 10 countries produce around 70 percent of global GHG emissions. Here’s a deeper look at these top 10 emitters—examining their total emissions, per capita emissions, emissions intensity, and historical cumulative emissions. Read more »

The History of Carbon Dioxide Emissions

arbon dioxide (CO₂) emissions from human activities are now higher than at any point in our history. In fact, recent data reveals that global CO₂ emissions were 150 times higher in 2011 than they were in 1850. How did we arrive at such an unprecedented—and precarious—state? Read on for a visual history of the world's carbon dioxide emissions. Read more »

Explore Changing Global Emissions through Interactive Maps

Global emissions are higher than any point in history and atmospheric concentrations of carbon dioxide are increasing faster than the previous 30 years. A new interactive map reveals how carbon dioxide emissions are distributed globally and how they've changed in the past 160 years. Read more »