Overview: https://parkplanning.nps.gov/projectHome.cfm?projectID=89100

User-friendly comment form: https://parkplanning.nps.gov/commentForm.cfm?documentID=99318

Template:

I oppose the deployment of wi-fi and other wireless radiation technology in Yellowstone, and all National Parks. Peer reviewed published science shows wireless radiation harms trees, birds, bees and insects. Peer-reviewed published science shows wireless radiation harms people, and children are especially vulnerable. People with electromagnetic sensitivity (EHS) depend on having wi-fi free accommodations and access to nature to restore and heal. Increasing wi-fi in parks could become an ADA issue. 

Wired and corded communications are safer and more reliable. Protect people, nature, and access to our wilderness treasures by creating policy to reduce wireless radiation throughout the park. Invite visitors to unplug and enjoy nature.

See science references in this joint letter to Congress asking them to oppose wireless radiation expansion: http://emfsafetynetwork.org/wp-content/uploads/2017/11/Letter-to-Congress-2017-1.pdf

Thank you for your consideration.