In part 2 of our trees episode, conservation scientist from the Zoological Society of London, Monica Bohm, talks about how climate change, deforestation and habitat loss is impacting plants and animals around the world. Monica works on ZSL and WWF’s Living Planet Report monitoring population sizes of living things.

This episode is about trees; losing them, planting them, protecting them and the amazing ecosystems they support. We hear from former NASA and Apple engineer turned YouTuber, Mark Rober, who has millions of subscribers to his YouTube channel. He reflects on galvanising a youth movement in the US with fellow YouTuber MrBeast to plant 20 million trees. Plus, Bryna Griffin, Head of Forests Programme for BirdLife International, talks about Trillion Trees’ global vision to protect and restore a trillion trees.

In part 2, Alannah Weston, the chair of Selfridges, talks to Liz Bonnin, Victoria Gill and Matt McGrath about how an iconic department store which sells lots of stuff goes about trying to create a more sustainable business model.

This episode looks at the stuff we buy and the impact it has on the planet. The Repair Shop’s Jay Blades talks to Liz Bonnin and Matt McGrath about consumerism and re-evaluating how we buy things. Plus, Professor John Barrett from The University of Leeds sheds light on the emissions created in the manufacturing process and Dr Nicole Koenig-Lewis from Cardiff Business School looks at alternative ways of consuming.

This episode is about climate denial, apathy and how we choose to live on the planet. Professor Lorraine Whitmarsh, the director of the Centre for Climate Change and Social Transformations and Professor Katherine Hayhoe, an atmospheric scientist at Texas Tech University join Liz Bonnin, Matt McGrath and Victoria Gill to talk about the scientific basis for human-made climate change and reasons behind our behaviours.

In Part 2, Liz Bonnin, Matt McGrath and Victoria Gill discuss the foods we produce, buy and eat and speak to Indra Thillainathan, an agriculture and land use analyst at the Committee on Climate Change, which gives independent advice to the UK government on building a low-carbon economy.

This episode is about food and farming. Hollywood actor Idris Elba and his wife Sabrina Dhowre Elba are UN Goodwill Ambassadors for the International Fund for Agricultural Development and talk about the impacts of climate change on poor, rural communities in Africa.

They also share some personal insights with Liz Bonnin, Matt McGrath and Victoria Gill about inequality, the state of our global food systems and how we can all do something to help

In Part 2, Liz Bonnin, Matt McGrath and Victoria Gill hear 10 things we can do to help tackle climate change with Crystal Chissell, Vice President of Operations and Engagement at Project Drawdown. The non-profit US organisation looks into existing climate solutions.

The celebrated broadcaster, Sir David Attenborough, shares his thoughts about the impact of the pandemic on tackling climate change. He says he is frustrated by the delay of government action to protect the natural world and tells us the excesses of capitalism should be "curbed" to save nature.

Plus, Liz Bonnin, Matt McGrath and Victoria Gill reflect on where we are at now and what lies ahead.

A quick hello and welcome from the team of ‘What Planet Are We On?’. Coming very soon to BBC Sounds, a new podcast about climate change and how we choose to live on this planet.

Hosted by science, natural history and environmental broadcaster Liz Bonnin alongside the BBC’s environment correspondent Matt McGrath and science correspondent Vic Gill, we’ll be exploring some of the impacts we’re having on the world.