Science & Environmental Health Network

SEHN was formed in 1994 by a number of different environmental organizations from North America, including:^{[citation needed]}

• Environmental Research Foundation
• Environmental Defense Fund
• OMB Watch

All of the organizations involved in the formation of SEHN were concerned with the way science was being used in the realms of public health and the environment, noticing that the application of new scientific principles was often more harmful than beneficial. In 1999, SEHN was granted the status of a 501(c) organization.^[2]

The Cumulative Impacts project was launched by SEHN in collaboration with the Collaborative on Health and the Environment.^[3] It is designed to reduce the effect of cumulative impact on:

• Ecosystems
• Communities
• Human Health

Cumulative Impact refers to the myriad of different factors that can adversely affect one of the above three categories, such as exposure to toxic substances, nutrition and infectious diseases, among many others. The group works towards establishing best practices within science and on legal shifts, in the hope that these can be used to reduce the cumulative impact seen in many aspects of the world.^[4]

SEHN is an active advocate of the Precautionary Principle, which advises that, when an action could have a negative effect on the public or environment, those taking the action should be expected to prove that the action is not harmful. SEHN played an active role in the promotion of this principle and Carolyn Raffensperger, executive director of SEHN, convened the Wingspread Conference on the Precautionary Principle in 1998, where the principle was defined.^[5]

Members of SEHN have also published a number of different essays on the Precautionary Principle, as well as released many statements responding to developments surrounding the principle.^{[citation needed]}

In 2012, along with Peaceful Uprising, SEHN sponsored the Women's Congress for Future Generations, a three-day gathering attended by over 100 people.^[6] The meeting was designed to highlight the role women have to play in the future of the world, especially environmental issues.^[7]