That's right. Precisely because it's the Anthropocene (the most non-anthropocentric concept ever, stay tuned for my reasoning). World depends on horizon, which depends on something that is beyond the horizon--there is no horizon anymore. You know that when you flush the toilet, it goes into the wastewater treatment plant, or the Gulf, or the Atlantic, or wherever. There is no away. Thus there is no world.
That's why Hyperobjects is subtitled Philosophy and Ecology after the End of the World.