San Onofre Nuclear Generating Station, the twin-reactor power plant that spread its isotopic glow across coastal communities from Los Angeles to San Diego, was declared dead last week. SONGS, as it was affectionately known, was 44, though many of its parts are considerably younger.

Nuclear power was already understood to be dirty, dangerous and absurdly expensive, even without the pressures of climate change. Far from being the answer to growing greenhouse gas emissions, the lifecycle of nuclear power–from mining and milling to transport and disposal–has turned out to be a significant contributor to the problem. And now, the global weirding brought on by that problem has made nuclear even more precarious–more perilous and more pricy–and so an even more pernicious bet.