Aquamation vs Traditional Cremation

What is the difference between aquamation and cremation? Is aquamation better for the environment than flame cremation? How does water cremation work and what are the ashes like? Is aquamation legal in New York and New Jersey? How much does aquamation cost compared to traditional cremation? This stack compares both options side by side — covering the science, environmental impact, cost differences, religious considerations, and what families can expect from each process.