WASHINGTON (AP) — The head of the Environmental Protection Agency states he will replace the panels that will advise him on science plus public health issues with new users holding more diverse views.

EPA Boss Scott Pruitt announced the adjustments Tuesday, saying many previously hired to the boards were potentially biased because they had received federal scholarships. The panels advise EPA on the wide range of issues, including drinking water criteria and clean air regulations.

Pruitt provides expressed skepticism about the consensus associated with climate scientists that man-made co2 emissions are the primary cause of worldwide warming. He also overruled professionals that had recommended pulling the top-selling pesticide from the market right after peer-reviewed studies showed it broken children’s brains.

Environmentalists worry that will Pruitt will now select advisers along with ties to the fossil-fuel and chemical substance industries.