Dr Wilson Evergreen was a scientist from mid 20th century Earth.
He was mentioned of in Greg Cox's Eugenics Wars Volume 1. Evergreen claimed that he was born in 6000BC Mesopotamia, and it is possible that he is the immortal Flint.
Evergreen's work included manipulating Earth's magnetic field via a geostationary satellite. This method would make possible the preservation of Earth's ozone layer in the face of CFC abuse by man.
Gary Seven eventually persuaded him to destroy everything related to his work as the device could also be used as a weapon to create holes in the ozone layer over an enemy nation.
Evergreen left the ozone hole unrepaired to remind humanity that there are consequences to their reckless behaviour, and to encourage a move toward a peaceful, responsible, more enlightened era.
- Greg Cox. The Eugenics Wars: The Rise and Fall of Khan Noonien Singh. Pocket Books, 2001.