Sam J. Miller's Blackfish City is set on an Earth ravaged by climate change and natural disasters. The last city is in the defrosted Arctic Circle, but society has stratified and only the elite few enjoy a comfortable life. When a woman arrives in the city, riding an orca and accompanied by a polar bear, she serves as a conduit to bring together people from different parts of society to resist the creeping corruption and attempt to save what remains of humankind.