A look at one of the biggest challenges facing our world today - migration - and how we are tackling it.

A look at one of the biggest challenges facing our world today - migration - and how we are tackling it.

People have always moved to find work, improve their lives or to escape conflict. Most stay in their own country, but some migrate to other lands. Migrants can bring host countries a range of benefits, from filling job vacancies to making cultures more diverse, but there are also undeniable challenges, and resources can feel very stretched.

How can we build a better, fairer, more equal, cleaner world? This series seeks to answer this by exploring some of the greatest challenges facing our planet today - from disease to conflict, and from the energy crisis to the plight of refugees. It explains what is already being done to meet and tackle these challenges, and explores what more could and should be done, both individually and collectively, to ensure a better future for our planet, its people and its wildlife.

Taking a positive, but realistic perspective, this series aims to empower young readers by helping them understand these complex and troubling issues, calm their anxieties, and promote empathy and understanding for the many millions of people suffering from for example, poverty or inequality.