ITV Cymru Wales has had a first look inside Cardiff's modern incinerator since it started operating earlier this year.
The plant will burn up to 350 thousand tonnes of household waste a year and is now running 24 hours a day, 7 days a week.
The site says the burning process is safe and effective but environmentalists argue it's the wrong answer to our waste problems and the health effects are still unknown.
Watch Alexandra Lodge's report:
Wildlife lovers have gone to unusual measures to attract puffins to the remote Ramsey island off the Pembrokeshire coast.
They have installed a flock of fibreglass puffins, which they hope will encourage the rare sea birds to the island.
Volunteers have also wired up loudspeakers which will play the birds' mating calls in the hope that it will lure the birds.
Ramsay Island was once home to thousands of puffins in the 1800s but they left when rats managed to find their way onto the island from a ship wreck.
The RSPB hope that these new measures will encourage new birds to stay and nest on the island.
Almost 140 people have been prosecuted in the last 12 months in an ongoing battle against illegal fishing and poaching.
The anglers were caught committing a range of offences, from not having a rod licence to illegal netting and cruel 'foul hooking', which involves dragging hooks through the water at high speed in an attempt to impale fish on the hooks.
All but three of the 139 cases resulted in successful prosecutions and combined fines of £18,468, as well as the confiscation of equipment.
Natural Resources Wales warns illegal fishing is damaging to the angling industry, which is worth more than £150 million to the Welsh economy.
A spokesperson said: "Angling helps protect the environment, is a big draw for tourism and plays a major role in the local economy.
"It's important that we continue to crack down on illegal fishing activity so that it remains sustainable for licensed fisherman."
Voting has opened for the European Tree of the Year competition and Wales has high hopes for its entrant.
The Oak at the Gate of the Dead sits right in the gateway to the Ceiriog Valley at Castle Mill right on Offas Dyke.
The tree, which is reporter to be between 750 and 1200 years old witnessed a the legendary battle of Crogen in 1165, where an invading English Army was ambushed by Welsh forces in the area.
People are able to vote for the tree, or any others, throughout the whole of February, on the website www.treeoftheyear.org
If you're looking for a way of getting rid of leftovers from Christmas - and would like to do your bit for the environment - this could be for you.
We're being urged to mark the New Year with a new effort to reuse things - and to recycle rubbish.
It's all part of a drive to get us to recycle 58% of our waste by next year.
Tom Sheldrick reports.
Source: Waste Awareness Wales
- Household recycling in Wales rose from 7% in 2001 to 52% in 2012/13
- A single drink can could be recycled as many as eight times in a year, saving enough energy to manufacture 160 new cans.
- 56% of card still ends up in landfill. 60% of card thrown in a Welsh black bag is made up of thin card packing like cereal boxes.
- In Wales, we produce enough household food waste to fill 10,587 double decker buses...
- Although they can be recycled, aerosols and foil are the two materials that the greatest proportion of people throw-away.
- Only 50% of plastic bottles in Wales get recycled. We use around 725,000 a day.
- Around 600 million UK household batteries (22,000 tonnes) – the equivalent weight of 110 Jumbo Jets – are sent to landfill each year. Most could be recycled instead.
Recycling organisation 'Waste Awareness Wales' says 2013 was a year of recycling success.
It comes as the target to recycle 52 per cent of waste was achieved. But the organisation says more needs to be done, with a target of 58% set for 2015-16.
On the map it just looks blank - but between the Conwy Valley and Snowdonia is one of the world's most remarkable eco-systems - a blanket bog.
They've spent hundreds of thousands of pounds building dams and destroying ditches to take the landscape back to how it was for centuries.
Rob Shelley reports.
A group of enthusiasts are hoping that a Wales tree could win the European Tree of the Year competition.
They think that one great oak that lies in the picturesque Ceiriog Valley near Chirk has a history that gives it one of the best stories to be found between Cardiff and Kiev... Rob Shelley has been to discover more.
The Caeryder Oak, in Llanhennock, near Newport, is believed to be 1,000 years old. This photograph was sent to us by a local resident who thinks it could rival the the Oak at the Gate of the Dead in the Ceiriog Valley, which has just been nominated in the European Tree of the Year competition.
If you know a tree that can rival the Ceiriog Valley Oak, send us a picture via email to email@example.com