Wales this Week goes on the trail of illegal waste tippers, who cost Wales millions of pounds a year.
Two chicks which successfully hatched at Cors Dyfi nature reserve near Machynlleth are now four weeks old.
Ash dieback disease has reached Wales for the first time.The fungal disease is threatening to wipe out the majority of Britain's ash trees.
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
An oak tree that witnessed a legendary battle in 1165 has been entered into the European Tree of the Year Award.
The Oak at the Gate of the Dead lives in the Ceiriog Valley.
It's believed to have existed during the time of the battle of Crogen, where an invading English Army was ambushed by Welsh forces in the area.
People will be able to vote for the tree, or any others, from February next year on the websiteL www.treeoftheyear.org
Seven months after one of Wales' most iconic oak trees, the Pontfadog Oak was blown down in a storm, one of its neighbours, the Oak at the Gate of the Dead, in the Ceiriog Valley has been entered into the European Tree of the Year Award.
It's the first time a Welsh tree has been nominated in the competition which aims to find the most beautiful and rarest of trees, with a story that can bring a community together.
The tree is believed to be around 1,000 years old and it stands at Castle Mill near Chirk.
More needs to be done to protect wildlife in Wales according to a leading charity. The Royal Society for the Protection of Birds says action is vital as habitats and species are declining.
The Welsh Government has just begun a consultation on plans to streamline the way the
environment is managed in Wales. Natural Resources Wales came into being earlier this year and was formed from a merger of the Countryside Council for Wales, Environment Agency Wales and the Forestry Commission Wales. The Welsh Government says it wants more co-operation between bodies and for the
management of the environment to be streamlined. RSPB Cymru says it is pleased that the state of the environment in Wales is in the spotlight but says concrete action is needed as the situation for a number of species is becoming critical.
– Katie-Jo Luxton, RSPB Cymru
We tend to think of Wales as clean and green, but in fact we're losing that diversity of life, right here, right now."
Forestry workers have begun to fell hundreds of acres of trees in the largest ancient woodland in Wales because they have been infected by a fungal disease.
It is spreading through thousands of larch trees that are growing in the historic Wentwood Forest between Newport and Chepstow.
Years of conservation work by the Woodland Trust will be undermined by the felling of trees at Wentwood Forest.
Restoration work the charity began in 2006, involving the gradual removal of conifers to allow native broadleaf trees and characteristic ancient woodland flora and fauna to return, will be destroyed.
Much of Wentwood Forest was planted with confiers in the 1940s and 50s as a means of providing fast-growing wood for building. This has led to the decline of many species and unique characteristics of ancient woodland. Larch trees are part of attempts to restore the forest to its natural state.
Wales' largest ancient forest is to have many of its trees felled due to a fungus-like disease. Hundreds of acres of Wentwood Forest near Newport will be cut down. It's thought that the disease will continue to spread in the coming months and further felling will be required.
Natural Resources Wales says it will spend £500,000 immediately to try to stop the Phytophthora ramorum tree disease from spreading further.
An extra £2 million will be provided for carrying out future work.
This is the most serious and devastating action we’ve had to take on our estate because of tree disease and it again highlights both the need to tackle tree disease and the importance of restoring as much of our damaged ancient woodland as possible to make it more resilient in decades to come.
– Barry Embling, Woodland Trust
Following the felling the Trust believes that the best approach is to immediately replant the wood with native broadleaf trees such as oak and cherry in the hope of preserving woodland specialist plants that only thrive when sheltered by tree canopy.
Trees in Wales' largest area of ancient woodland - Wentwood Forest near Newport - are being felled due to a devastating disease.
The Woodland Trust says larches in have been attacked by Phytophthora ramorum, which can damage and kill trees.
Work has already begun to remove 500 acres of the woodland.
The disease is already affecting thousands of larch trees elsewhere in Wales, the South West of England, Ireland and Scotland.