This week on Living Planet we'll find out why global warming increases the threat from rising sea levels around the globe and we pay a visit to Romania’s Danube Delta, a UNESCO World Heritage Site that’s under threat of losing its unique biodiversity.

This week on Living Planet: Scotland explores novel ways of harnessing ocean power, community food-sharing in Berlin comes under threat, and why researchers are trying to grow food in outer space.

This week on Living Planet: Scotland explores novel ways of harnessing ocean power, community food-sharing in Berlin comes under threat, and why researchers are trying to grow food in outer space.

This week on Living Planet: protestors in California demand action over gas leak, India faces a tough energy dilemma, Brittany strives for green power, and the secret to going fossil fuel free.

When it comes to the threats our planet faces, it can often feel a bit doom and gloom. Can our individual actions really make a difference? This week on Living Planet, we meet some passionate people who inspire. We hear tales of unconventional love for trees, and find out why hipsters are driving LA’s bicycle trend.

On this week's show: Concerns abound about the aerial spraying of controversial pesticide glyphosate in Argentina. The aftermath of Brazil's worst ever mining disaster. The fate of climate refugees in Kenya and how we humans are interfering with the earth's ice age cycles.

All about birds: We hear about bird beatboxing in India, woodpeckers coming to the rescue in the fight against a small green bug in Canada and about a school in Slovakia where kids learn to take care of birds of prey. And: coconut breakers in Brazil fight for their livelihoods.

What's ahead of us in the new year? Will the new year bring us forward in cleaning up our polluted air and making our food and energy supplies more sustainable? Living Planet investigated what's going on in India, East Africa and Europe.

As the year draws to a close we look back at some of Living Planet's highlights of 2015. We'll be delving beneath snow and ice at the apocalypse-proof Svalbard Global Seed Vault, and exploring Rome’s subterranean secrets to discover a growing problem with waste. Elsewhere in Italy, we look at plans to stop the floating city of Venice vanishing beneath the waves.

Living Planet revisits some of our most memorable animal moments of 2015. We're in Thailand to talk to an entrepreneur who feeds coffee beans to elephants and charges a premium for what comes out. In Spain, the lynx is making a comeback. Plus, we hear about bee highways in Norway, and the dogs in Democratic Republic of Congo working to protect endangered mountain gorillas from poachers.