The planning for this half-billion-dollar ecological project, and the construction of its monitoring instruments, took around twenty years. It began operating at full tilt in 2019.
That’s the same year when a scientist at Yellowstone National Park started to question why NEON was releasing sulfur hexafluoride at Blacktail Deer Creek, according to documents obtained through a public records request by Public Employees for Environmental Responsibility, a group that supports workers within the government who are concerned about activities that can harm the environment.
