Across the world, people are having to rethink the way they grow food in the face of the impacts of climate change and industrial agriculture. We hear from seed guardians in Ecuador trying to save vital seed varieties from disappearing, and from farmers in East Africa battling deadly invisible toxins in their crops. Plus: An organic farming group's ambitious plan to green the desert in Egypt.

We dissect US President Joe Biden's pledge to cut his country's greenhouse gas emissions in half by 2030. Protesters in Serbia sound off on big polluters, while a city in the UK takes the initiative to clean up its dirty air. And we discuss how international travel to picturesque destinations really impacts the environment in the Global South.

In this episode of Living Planet, we hear about some of the different ways ordinary people relate to environmental issues in different parts of the world. Climate activists talk about using TikTok to reach Generation Z. And 35 years after the Chernobyl disaster, we'll hear how people in Russia and China view the future of nuclear energy.

This week on Living Planet, stories of how local movers and shakers deal with global problems. Glaciologists in Oregon tell us what they've learned about the climate from frozen caves, while a community in Lyon, France protests meatless school lunches. We also debate the ethics of traveling by cruise or by plane. And women from the Niger Delta share their fight for justice over oil pollution.

From species extinction to waste, land degradation to climate change and pollution, from Kenya to Australia, India, and France, this two-part special explores some of the most urgent environmental problems facing the planet — and how they might be solved. In part two, we hear about deforestation in Kashmir, puzzling water scarcity in Kenya and attempts to reduce severe air pollution in Delhi.

From species extinction to waste, land degradation to climate change and pollution, from Kenya to Australia, India, and France, this two-part special explores some of the most urgent environmental problems facing the planet — and how they might be solved. In part one, we hear about the struggle to save a native Tasmanian species from extinction, plus: French solutions to a sickening waste pile.

In the Global North, clean water is taken for granted — but in some places it means the difference between life and death. "Water wars" are taking place as people fight failing systems, and combat climate change, to access enough clean water for all. From Chile to South Africa, India to the Caribbean, we hear about those water conflicts that are flowing beneath the surface.

Trees are often seen as something to be chopped down for economic gain or cleared to make way for development. But without them, scientists warn, humanity loses an important lifeline. These carbon sinks can be thought of as giant air conditioners that cool the planet — a powerful tool in mitigating climate change. From Costa Rica to Brazil, Rome to Madrid, we hear about the state of our trees.

We depend on farming — and farmers — to grow the food we need to survive. Agriculture can be environmentally damaging — yet there are alternatives. From adjusting our avocado consumption, to a sustainable (and underrated) crop of the future: beans. And finally, restoring rivers to boost harvests in India.

As more countries seek to phase in renewable energies, coal retains a firm grip in many parts of the world. In India, the picturesque state of Goa is set to become the country's new coal hub. China's plans to cut back on carbon emissions don't line up with its dependence on coal. And in London, activists can't agree on the best path to net-zero emissions.