TO BE REMOVED ?

It's a macabre paradox, but almost every advance in aviation safety has been driven by a crash. After every crash, investigators determine its cause and scientists make every effort to ensure the same mistakes never happen again.

Scientists are expecting a fit of violent activity on the sun which will propel billions of tonnes of superheated gas and pulses of energy towards our planet.

In 1992 the nuclear industry celebrated its 50th anniversary and the report on the accident at Chernobyl claimed there was no evidence of long term health effects. Within months, a team of western scientists presented a very different picture with evidence of an epidemic of thyroid cancers in local children.

Two months after an explosion on BP's Deepwater Horizon oil rig in the Gulf of Mexico killed 11 people, Panorama's Hilary Andersson tells the story of America's 'greatest environmental disaster.' Dubbed an environmental '9/11' by President Obama, the leak caused by the explosion is still releasing thousands of barrels of crude oil a day into the waters of the Gulf.

Storyville: Marking the second anniversary of the Fukushima nuclear catastrophe, this documentary tells an insightful and surprisingly funny story of a family adjusting to life after the tsunami.

A documentary series in which expert scientific testimony and stunning CGI visuals combine to create the most realistic perfect storms imaginable. This edition speculates on what could happen if a mega-tornado were to strike.

2011 has been a year of epic-scale climate and geological events across the world. This film looks back on a year of natural disasters, all caught on camera in spectacular fashion.

International investigative documentary series. When a tsunami struck Japan in 2011, it swamped the Fukushima nuclear complex causing nuclear meltdown and releasing radiation that ultimately would leave hundreds of square miles uninhabitable, and cost a hundred thousand people.

Unreported World travels to Bangladesh, one of the poorest and most densely populated countries on Earth and on the front line of climate change.

Haiti hit the headlines last year when it was hit by yet another hurricane. Unreported World returns to the island to find that it's still in a state of emergency.

Pakistan's floods may have receded but their catastrophic consequences continue. Reporter Peter Oborne and director Simon Phillips discover that incompetence and alleged corruption have caused poor areas to be flooded and rich ones protected. And in a country whose institutions are failing the people they are supposed to protect, they find ordinary Pakistanis striving to rebuild their lives.

A film revealing how political ambition fuelled the Windscale fire of 1957 and then dictated that the heroes of Windscale be made the scapegoats