More than a year after the US Environmental Protection Agency took down information on climate change from its website for an “update”, it now seems uncertain whether it will ever reappear. In April last year, the EPA replaced its online climate change section with a holding page that said the content was being updated to “reflect the agency’s new direction under President Donald Trump”. Information previously found at epa.gov/climatechange made it clear that human activity was warming the planet, resulting in harm to Americans’ health as well as crucial ecosystems on which humans depend. The “update” page has now given...