Climate change is killing Americans and destroying the country’s physical infrastructure.

The federal government spends roughly $700 billion a year on the military. It spends perhaps $15 billion a year trying to understand and stop climate change.

I thought about those numbers a lot last week, as I tried to stop my toddler from playing in ash, tried to calm down my dogs as they paced and panted in mid-morning dusk light, tried to figure out whether my air purifier was actually protecting my lungs, tried to understand why the sky was pumpkin-colored, and tried not to think about the carcinogen risk of breathing in wildfire smoke, week after week.

The government has committed to defending us and our allies against foreign enemies. Yet when it comes to the single biggest existential threat we collectively face—the one that threatens to make much of the planet uninhabitable, starve millions, and incite violent conflicts around the world—it has chosen to do near-nothing. Worse than that, the federal government continues to subsidize and promote fossil fuels, and with them the destruction of our planetary home. Climate hell is here. We cannot stand it. And we cannot afford it either.