The Earth Liberation Front torched the new apartment building tower next to Thom and Jen. Thom and Jen left unharmed; The ELF left the banner, "If you build it, we will burn it.".
How do organizations die? I don't see the ELF obtaining a "satisfactory" level of fauna and flora co-existence, and then deciding to disband. That leaves a future where we have ozone-hole-burnt skin, and increased guerilla warfare. Time to build Zardoz.