Data wrangling and cleaning
Deduplication • Record linkage • Named entity recognition
We use advanced AI and machine learning techniques to extract, link and format messy and unstructured data into clean, reliable outputs.
Selected examples

UK PR firms increased fossil fuels lobbying since Paris Agreement
British PR firms ramped up their collaboration with fossil fuels companies and trade groups despite climate pledges, a Global Witness investigation reveals.
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Fossil fuel lobbyists flood COP30 climate talks in Brazil, with largest ever attendance share
With one in every 25 COP30 attendees a fossil fuel lobbyist, massive industry presence intensifies calls to protect climate negotiations from corporate capture.
View workAugmenta: A new tool for AI classification and research
We are making the tool behind some of our investigations available for public use.
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OpenLobbying
OpenLobbying collects, cleans and standardises UK lobbying registers so you can explore how corporations shape policy.
View workHow we used AI to help us find lobbyists at COP
Every year, Global Witness works with partners in the Keep Big Polluters Out coalition to identify fossil fuel lobbyists who are attending the COP climate talks. For COP29, we pioneered an AI-assisted approach to the process that streamlined and strengthened our analysis.
View workCOP oil companies' emissions are set to cause 17 million heat deaths
Oil firms present at COP summits made $2.6 trillion profits since the Paris Agreement – enough to pay half the cost of climate damage in poor countries.
View workFossil fuel lobbyists eclipse delegations from most climate-vulnerable nations at COP29 climate talks
At least 1,773 fossil fuel lobbyists have been granted access to the COP29 summit in Baku, underscoring an outsized polluter presence year after year at crucial climate talks, according to a new analysis from the Kick Big Polluters Out (KBPO) coalition.
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The UK government met with oil lobbyists every day last year
A Global Witness investigation reveals that government officials met with oil and gas lobbyists an average of 1.4 times per working day in 2023.
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