Peat is sometimes referred to as bog and is predominantly found in upland areas. It is formed in waterlogged areas, where there is no oxygen to break down vegetation. This creates layers of rich organic matter full of carbon. But it’s a slow process! It can take up to 100 years for 1 metre of peat to form. So, it’s critical that peat remains where it belongs – in the ground! Sadly, this isn’t the case at present. Instead, garden centres sell bags upon bags of peat compost and plants potted in peat.
What’s the problem?
When peatlands are drained, the carbon is released as greenhouse gases to the atmosphere. That is why it is important to keep peatlands wet; otherwise, they emit rather than store carbon. Unfortunately, most of the peat in Wales is in poor condition and is slowly releasing its carbon. In the UK over 20 million tonnes of carbon dioxide is lost to the atmosphere from damaged peatlands – that’s twice as much greenhouse gas emissions than from aviation!
Peat is not only important for its carbon-storing properties but is also home to rare and threatened wildlife. Without peat, we risk losing enigmatic wildlife such as golden plover and hen harriers. Peat also holds the secret to adapting to our changing climate. Our weather is changing from unseasonably hot summers to more severe and frequent storms. If given a chance, peat can help, as it holds up to five times its own weight in water. It is essentially a giant sponge that can help alleviate flooding by holding back floodwaters.