This story was originally published by Mother Jones and is reproduced here as part of the Climate Desk collaboration.

President Donald Trump’s budget proposal would slash the Environmental Protection Agency’s scientific research programs by nearly half, according to a new report prepared by former EPA staffers.

The newly formed Environmental Protection Network is a coalition made up of retired employees from Republican and Democratic administrations, many of whom have had decades of experience running the day-to-day work at the agency. And on Monday, this group of lawyers, scientists, and policy wonks released an analysis of the White House budget ahead of congressional testimony that EPA Administrator Scott Pruitt is set to deliver on Thursday. The hearing will be the first time that Pruitt will have to defend the dramatic cuts the administration has proposed for the agency.