The various regulatory systems for approving pesticides in operation around the world are crude and flawed. This has long been clear to scientists and it is deeply worrying, as this regulation is supposed to protect people and the environment from harm. The various regulatory systems for approving pesticides in operation around the world are crude and flawed. This has long been clear to scientists and it is deeply worrying, as this regulation is supposed to protect people and the environment from harm. Ecology Agriculture Phys.org – latest science and technology news stories