Fi Glover pits optimists against pessimists in a debate on population growth.
Could a more relaxed policy on immigration help the developing world more than state aid?
Monty Don presents a special edition recorded before a live audience at Bristol University
More and more families from Guatemala, Honduras and El Salvador are travelling to the US
Would having fewer children help us save the planet?
An investigation into refugees crossing the Channel illegally and those profiting from it.
Prof Danny Dorling on why he thinks the population bomb has already been diffused.
Norman Borlaug averted famine predictions by tinkering with the genetic design of wheat.
Sir Frank Fraser Darling reflects on the problem of overpopulation.
Chris Mason brings together Radio 4 listeners' contributions about housing and population.
The world’s population is set to grow to 11 billion. Can we feed this number of people?
Sir Frank Fraser Darling explores the impact of Man on his environment.
Melvyn Bragg and his guests discuss Malthusianism.
Combative, provocative and engaging debate, presented by Michael Buerk.
Geoff Watts explores the relationship between global warming and a changing population.
Tom Heap asks if the growing world population is the most important environmental issue.
Michael Sandel explores the philosophical justifications made for national borders.
Evan Davis runs through the contenders for A History of the World's last object.
Evidence suggests that we are all becoming less connected with the natural world.
Harvard's Michael Sandel uses pioneering technology to conduct a truly global debate.
Is there room for wildlife in a world with an increasing human population?
Theatre maker Tom Bailey discusses the displacement of migration in Tweet of the Day.
Adam Hart reveals how humanity is altering the evolutionary paths of other creatures.