Beto O’Rourke released the first significant policy proposal of his presidential campaign on Monday. “Climate change is the greatest threat we face—one which will test our country, our democracy, and every single one of us,” begins his ambitious plan to fight climate change. “The stakes are clear: We are living in a transformed reality, where our longstanding inaction has not only impacted our climate but led to a growing emergency that has already started to sap our economic prosperity and public health—worsening inequality and threatening our safety and security.”

O’Rourke’s plan isn’t quite as ambitious as the Green New Deal, but O’Rourke is the first prominent 2020 candidate to create his own proposal to address the crisis as opposed to merely backing the GND, as Bernie Sanders, Elizabeth Warren, and Pete Buttigeig have done. Let the intra-party climate debate begin!

Seriously, everyone should be excited about this.

The two plans have a lot in common, but there’s a fundamental difference. Proponents of the Green New Deal approach climate change as an issue caused inherently by unchecked capitalism and the fossil fuel industry, and thus seek to vanquish—or at least, aggressively subdue—those enemies. O’Rourke does not expressly demonize either. In his plan, climate change itself is the enemy.

But first, the similarities. The Green New Deal calls for the economy to decarbonize by 2030. O’Rourke’s plan calls for an economy with net zero emissions by 2050. The latter goal is what climate scientists say is necessary worldwide to avoid warming of 1.5 degrees Celsius, the point at which irreversible catastrophe begins. So both plans are in line with the latest science—though the Green New Deal proposes the U.S. finish its transition with time to spare, in order to lead the way for the rest of the world.