NASA's plan to retire the International Space Station (ISS) by crashing it into a remote section of the Pacific Ocean is raising new questions about who should be responsible for the environmental consequences of space debris.
The orbiting laboratory has hosted astronauts continuously for more than 25 years and costs NASA nearly $3 billion (£2.2 billion) annually to maintain. The agency plans to guide it into a controlled re-entry over Point Nemo, a remote area of the South Pacific known as the world's 'spacecraft cemetery'.
