Chris Packham presents this special, one-off documentary about the crucial role trees have to play in combating climate change. And with the help of viewers, we'll raise funds to get thousands more of them in the ground.

Joined by presenters John Humphrys, Clare Nasir, Martin Hughes Games and JB Gill, plus experts from Woodland Trust, Chris explores the science of trees, the impacts of deforestation both worldwide and here in the UK, and how trees can help lock up carbon, fight flooding, and make landscapes more resilient.

Dame Judi Dench, one of Britain’s most respected film, stage and television actresses, and one of the Woodland Trust's ambassadors, is also getting behind this partnership.

Learn about how native trees are grown and sourced for our work, and discover how you can do your bit with tips on planting trees at home.

Missed the programme or want to watch again? Tune in to Channel 5 on Monday 9 December at 7pm.

We need more trees

Our climate is in crisis. Soaring CO2 emissions and a growing human population means that finding a solution has never been more important.

That's where trees come in. Trees eat CO2 for breakfast, locking up carbon and producing oxygen, all while providing vital homes for wildlife and performing other much-needed services for people too. 

By increasing the UK's tree cover, we can all take that first step towards tackling climate change. But we need to get planting quick, before it's too late.

Need more information?

We answer your queries in our frequently asked questions.

Every tree counts

Planting trees is what we do. But we can't do it without you.

Let's fight climate change together.