Peter Gibbs asks whether sound could become a vital tool in conservation, helping us understand far more about how wildlife interacts and how it is affected by changes in the environment . Technological advances in recording mean that we can now record huge amounts of data in remote locations. By using algorithms scientists hope to break down complex interactions between animals and their environment and be able to predict change or protect species. This is the emerging science of soundscape ecology. Scientists are hoping to apply big data solutions learnt from fields such as genetics to re-imagine conservation and asking all of us to listen and imagine what a world without natural sounds such as birdsong might be like.

Producer: Helen Lennard.

How do you move a city? Lesley Riddoch travels to Arctic Sweden to find out. Kiruna is gradually sliding into Europe's biggest iron ore mine. The city has to be rebuilt two miles away. That requires an extraordinary blend of planning, architecture, technology and stoicism. If anyone can do it then it's the Swedes.

Producer: Alasdair Cross.

Tom Heap tells the story of coal from Industrial Revolution to its apparent demise.

As the world begins to fall out of love with coal, is it too early to write its obituary?

Coal drove the Industrial Revolution in this country. It could be argued that it helped to put the 'Great' into Great Britain.

Now, at least in Britain, we're turning our back on the sooty black stuff. The last deep pit, Kellingley Colliery, closed in December 2015 and all of the coal-fired power stations in the UK are set to close in the next decade. Coal is on its knees.

But what about the rest of the world? China and the US have had an enormous appetite for coal and while both will continue to mine and burn the stuff for the coming decades, it is possible that we may have already reached 'peak coal' - the point at which coal demand will plateau, before declining.

Coal will continue to lift developing countries through the various economic growth. It is expected that areas of South Asia will continue to depend on coal to generate power but even in those places they are hoping to implement new, cleaner ways of burning coal. The fuel could be facing a 'long sunset'.

But is there a glimmer of hope?

Carbon Capture and Storage has often been hailed as a potential cure-all for Carbon Dioxide emissions from fossil fuels, so could it step in now to save coal before it is confined to the annals of history?

It may be too early to say. However in Canada there is one commercially operating plant. Many experts believe that we need CCS if we are going to seriously tackle our global CO2 emissions because, at least in the short term, coal will remain on his dusty throne for the coming decades.

Presenter: Tom Heap

Extreme weather this winter has cut off large areas of Britain from the outside world. Does our Victorian infrastructure need an urgent update?

With parts of Cumbria cut-off since early December, bridges down in Yorkshire, hundreds of ferry cancellations and the West Coast train line out of action until March it's increasingly clear that Britain can't cope with the strong winds and floods that are becoming the new norm.

Should we embark on a new transport revolution, pouring concrete and laying steel to future-proof our roads and railways or should we accept a disconnected Britain?

Presenter: Tom Heap

Peter Hadfield travels to Cambodia, Thailand and Vietnam to investigate the illegal trade in Siamese Rosewood.

Rosewood is a hard wood that is highly prized because it can be carved into ornate items of furniture, but the appetite for the wood is so voracious that Siamese Rosewood is now becoming critically endangered.

The wood is traded on the black market and now the Siamese Rosewood tree is close to being totally eradicated. Not only that, those responsible for the smuggling are leaving a trail of death and environmental destruction in their wake.

Peter Hadfield goes in search of the tree.

He's on the trail of the smugglers and discovers the measures being taken to try and safeguard the surviving trees.

Presenter: Peter Hadfield

David Attenborough and a panel of influential thinkers on the natural world join Tom Heap to preview this month's Climate Summit in Paris. Can the world's leaders come to an agreement to save a warming planet?

The director of Titanic, Avatar and Terminator, James Cameron tells Tom that a vegan diet can slash our carbon emissions. Former Australian Prime Minister, Kevin Rudd recalls what went wrong at the last climate summit in Copenhagen and explains why he's so much more hopeful of real commitments on carbon emissions from the Paris meeting.

David MacKay, the government's chief scientific advisor on energy policy until 2014, tells Tom that Europe's renewable energy policy is unfit for purpose and David Attenborough raises the thorny issue of our rising population.

Producer: Alasdair Cross.

Campaigners claim England's river life is under threat from 'insidious' pollution, yet the Environment Agency says rivers are at their healthiest in 20 years. Tom Heap visits the River Itchen, in Hampshire, and the River Thames to discover where the truth might lie. This is an important moment for rivers, the next five year plan for improving them is about to be published. The Government Minister for the Natural Environment, Rory Stewart, tells Tom what his priorities will be.

Presenter: Tom Heap

Bad news for lovers of tapenade and pesto. Olive trees are succumbing to a new disease. Tom Heap reports from Puglia on the ultimate foodie nightmare.

The heel of Italy is currently gripped by an outbreak of Xylella fastidiosa, a voracious tree disease that is systematically devastating olive groves in the main areas of production for olive oil.

95% of the world's olive trees are in the Mediterranean, and Italy is the world's second largest exporter of oil, behind Spain.

Rural communities risk being torn apart as the disease threatens the livelihoods of farming families that have grown olives in the region for centuries. The whole environment is set to change as trees die, leaving the landscape totally bare.

Tom meets the scientists about to wage war on the bacteria: Professor Giovanni Martelli and Dr Donato Boscia from the University of Bari. They are working to find a way of stopping the disease from spreading. If they are unsuccessful, olive production in the whole of the Mediterranean basin could be at risk.

Producer: Martin Poyntz-Roberts.

A new report from the National Trust reveals how how our coast has changed over the last 50 years. Tom Heap asks if we've become better or worse at protecting the nation's prime asset.

He joins John Whittow who led a team of students to survey the coast in 1965 and compares his findings with a brand new study from Leicester University. Has the rapid urbanisation of the 1960s continued or has the tide been turned? What new threats are on the horizon?

Producer: Alasdair Cross.

Our National Parks are getting less money from central government - some have seen their grant cut by 40% in the past 5 years. To make up the shortfall, they're exploring new commercial opportunities.

As well as coming up with individual fund-raising plans, the 15 National Parks in England, Wales and Scotland have formed a joint body, called National Parks Partnerships. It's exploring new ways of selling their collective logo: "Britain's Breathing Spaces". The idea is modeled on a similar organisation in the USA, which has done million dollar deals with companies like Disney and Coca-Cola.

So, how far should our parks go down the commercial route? Tom Heap investigates.

Producer: Chris Ledgard.