Have one fewer child — or none.
The single most consequential thing a person in a wealthy country can do. A child inherits not only your love but your continent’s consumption — every flight, every commute, every kilowatt — multiplied across a lifetime and the lifetimes that follow.
how: Honor the family you already have. Be the favorite aunt, the chosen uncle, the godparent. Adopt. Foster. Mentor. Build a life where love is not measured in offspring produced.