Found the article below RE Evergreen
Evergreen Is A CIA Owned Airline – Are They Spraying Us With Poison?
https://humansarefree.com/2020/01/evergreen-cia-chemtrails.html
In the context of depopulation, It seems that Evergreen is defined as depopulating the Earth to keep it Evergreen.
EVERGREEN (Hillary) is a depopulationist. She believes in Planned Parenthood, Arcancide and other means by which to cull the Earth of unwanted (deplorable) humans.
She believes:
The human carrying capacity of the Earth is estimated to 500 million according to the National Strategy for a Sustainable America, other authors estimate 1 to 12 billion. According to these studies, the human carrying capacity is already exceeded or would be exceeded by 2100,[14] therefore a global population decline would counteract the negative effects of human overpopulation
Depopulation in humans can be largely beneficial for a region, allocating more resources with less or no competition for the new population. In addition to exempting the disadvantages of overpopulation, such as increased traffic, pollution, real estate prices, environmental destruction, etc. Per-capita wealth may increase in depopulation scenarios,[3][4][5] in addition to improvement of environmental quality-of-life indicators[6] such as improved air and water quality, reforestation, return of native species, reduction of carbon emissions, etc.
.https://en.wikipedia.org/wiki/Population_decline