Thousands of diplomats, heads of state, national delegates, and international dignitaries are now in Paris wrapping up COP21, the round of international climate negotiations that aims to produce a legally binding agreement for the first time since the Conference of Parties began two decades ago. But the underlying social and economic stakes of the climate crisis aren’t on the table; of all the things up for negotiation, capitalism isn’t one of them. To think more transformatively, we need to look elsewhere.

Naomi Klein’s most recent book, This Changes Everything: Capitalism vs the Climate, was released over a year ago last September, in conjunction with the massive People’s Climate March in New York City. True to its title, TCE is a huge — and hugely ambitious — book: spanning more than five hundred pages, it aimed to change the way we talk about climate change and capitalism.

Jacobin published a generally favorable review by Sam Gindin last December; Gindin called it her most important book while criticizing her failure to tackle capitalism head-on. But we think the book deserves more discussion. So we’ve put together a colloquium, in the vein of last year’s conversation on Thomas Piketty, with three contributors considering the book’s arguments in depth.