Orchid

When the seas rose, genetic codes were smashed. Human settlements are ringed by a dense wilderness from which ferocious new animal species prey on the helpless. The high ground belongs to the rich and powerful that overlook swampland shantytowns from their fortress-like cities. Iron-fisted rule ensures order and allows the wealthy to harvest the poor as slaves.

The complete series in one TPB, written and created by Tom Morello.