The Climate Change Impacts and Risk Analysis (CIRA) page on December 3, 2025 (left), and December 5, 2025 (right), after it was taken down.
Welcome! This post is part of the EDGI Website Governance Team’s “Highlights from the Change Log” blog series. The purpose of this series is to highlight interesting changes we have observed in the content of, or access to, federal websites. We want to share these changes to encourage public engagement with and discussion of their significance, as well as understanding of the ephemeral nature of website information. These website changes happened in December 2025 and feature the removal of climate change information across the EPA’s website.
What happened
In early December, the EPA undertook some of the most extensive removals of climate change information by the Trump administration to date. Across the EPA’s website, at least 80 webpages related to climate change, its impacts, and its causes were removed.
The deletions spanned from key reports and publications to essential climate indicators. Among the changes, the EPA removed its entire website for its flagship Climate Change Impacts and Risk Analysis (CIRA) project, which previously provided extensive reports and journal publications for quantifying the impacts of climate change. Along with this deletion, the Framework for Evaluating Damages and Impacts, a core component of CIRA that used over 30 impact models to estimate the impacts of global warming across sectors, regions, and population groups, is now inaccessible.
The EPA also deleted more than half of the pages in its Climate Change Impacts website, including pages that detailed the impacts of climate change on coasts, energy, forests, human health, and more. Similarly, the EPA’s website dedicated to climate change indicators has been excised, including pages about coastal flooding, glaciers, drought, global temperatures, and much more. While a few pages within these domains remain online, they are now much more difficult to navigate to. For example, they are no longer linked from EPA’s Climate Change landing page and none of the climate change impacts pages come up in the first page of search results for “climate change indicators” on EPA’s website.
Many of the deleted pages specifically discuss the link between climate change and human health, including pages for “Understanding the Connection between Climate Change and Human Health,” “Climate Change Indicators: Health and Society,” “Climate Change and Human Health,” “Climate Change Impacts on Health,” and “Climate Change and Children’s Health and Well-Being in the United States Report.”
In addition to this widespread deletion of information, other climate change information was significantly altered. For example, the Overview of Greenhouse Gas page remains available, but is now missing a large section that detailed historical trends in global emissions. Similarly, EPA’s page for the Causes of Climate Change remains active, but all information about the anthropogenic causes of climate change has been removed and what remains discusses the natural variations in the Earth’s climate.
Why we think it’s interesting
These information removals target not only scientists and researchers by removing essential analytical resources, but also state, local, Tribal, and federal policy-makers and the general public, by deleting information about Heat-Related Deaths, Coastal Flooding, Wildfires, Snowfall, and Droughts. EPA had been one of the federal leaders in translating climate change data into practical information with policy and personal implications.
These recent changes expand the Trump administration’s extensive targeting of climate information since inauguration. Since January, EDGI has documented over 500 changes on federal websites related to climate. In our Climate of Suppression Report published in August 2025, EDGI detailed the removals of globalchange.gov and the redirection of climate.gov to noaa.gov/climate, while noting that the EPA’s climate change website had been left relatively untouched. However, shortly after that report was published, EDGI documented a significant uptick in climate change information removal at the EPA, including copious language changes that have replaced the term “climate change” with: climate variability, weather variability, natural disaster, adaptation, preparedness, or resilience.
These most recent changes constitute, by far, the most extensive removal of climate change information from EPA’s website during this administration. While the EPA’s climate change home page remains accessible at this time, many of the links on that page lead to pages that have been removed, returning “page not found” messages.