Ecocide is more of a threat than nuclear war.
It is worth noting that [environmental destruction] is not the work of ignorant people. Rather, it is largely the result of work by people with BAs, BSs, LLBs, MBAs, and PhDs.
I cannot identify what sparked my environmental awareness. The romantic in me invokes childhood with an ardently outdoor maternal grandfather, who taught me to distinguish a beech tree from a birch, to plant potatoes, and to welcome the tree frogs' spring chorus with awe and delight. More likely, the recognition arrived not from childhood pleasures or reading Henry David Thoreau but from something as quotidian and cumulative as exhaustion from years of commuting from New Hampshire to Boston for work as an adjunct, sucking exhaust fumes on Route 128.