You forgot the biggest insanity of all: the wholesale undermining of our ecosystem for short-term private gain. The biggest offender by far is idiotic practices that deforest and degrade soil in agriculture and animal husbandry. Throughout history these practices have made more land "useless" through desertification than nuclear accidents could even dream of.
Currently the Amazon rainforest is being slashed and burned for a mere decade or so of beef production, before the fertility is washed out to sea, the vegetation dies, the continental transpiration cycle shuts down, and that land too is desertified. A similar process has already happened the Middle East, which was forested in accounts as recently as Napoleon's campaigns.
I liken it to the crew of your spaceship busily axing away at the life support generators... :-\
Currently the Amazon rainforest is being slashed and burned for a mere decade or so of beef production, before the fertility is washed out to sea, the vegetation dies, the continental transpiration cycle shuts down, and that land too is desertified. A similar process has already happened the Middle East, which was forested in accounts as recently as Napoleon's campaigns.
I liken it to the crew of your spaceship busily axing away at the life support generators... :-\