We need land for so many of humanity's growing needs, such as food, renewable energy, carbon storage and housing. Traditionally, we've stolen it from nature, but this has led to a mounting toll of extinction and pollution that is now punishing us. So, as there's no land left to take, how do we get more from the same, or preferably less. Tom Heap, a presenter on BBC TV's Countryfile, Radio 4's new Rare Earth series and the anchor of The Climate Show on Sky News, tours the British countryside meeting the farmers, scientists, conservationists and even warehouse managers who are solving the most pressing challenges facing our countryside and the world. If we use land cleverly it can give both humanity and nature the space to thrive on just the one planet. If not, we're in trouble.