Six months after the ravages of Hurricane Katrina, scientists investigate how New Orleans's flood defences failed to stop it becoming waterlogged. As the city sinks, global sea levels are rising and the coastline that protects it is disappearing - prompting experts to wonder whether it should be rebuilt at all.
Season 41 Episode 13 of Horizon resulted in a 0.00 rating in the 18-49 demographic.
s41e01 - Tsunami: Naming The Dead
s41e02 - The Hawking Paradox
s41e03 - The Mystery of the Human Hobbit
s41e04 - The Doctor Who Makes People Walk Again
s41e05 - Could Fish Make My Child Smart
s41e10 - Space Tourists
s41e11 - Waiting for a Heartbeat
s41e12 - A War on Science
s41e13 - The Lost City of New Orleans
s41e14 - Most of Our Universe Is Missing
s41e16 - The Lost Civilisation of Peru
s41e17 - The Next Megaquake
s41e18 - Does The MMR Jab Cause Autism
Horizon is BBC Two's flagship 50-minute science documentary series.
Recognised as the world leader in its field, it regularly wins a sweep of international science, medical and environmental film accolades, and has recently won the Royal Television Society Award and the Prix Italia.
In 2002, the British Academy of Film & Television Arts presented Horizon with the BAFTA Television Award for Best Factual Series or Strand.
In 2003 it won the prestigious Images et Science award for best medical documentary and the Carl von Linne Award at the Living Europe film festival in Sweden. That year, a Horizon co-production with WGBH Boston won the Emmy for best documentary.
In September 2014 it celebrated its 50th anniversary and it continues to enjoy outstanding critical acclaim.