The UN marked today the global population reaching seven billion (see here). The global population is expected to grow to nine billion by 2050 and to 15 billion by 2100. This milestone event was accompanied with a call to action by top UN officials addressed to world leaders to meet the challenges that a growing population poses, from ensuring adequate food and clean water to guaranteeing equal access to security and justice. The overall situation is far from rosy. About one billion people around the world leave in poverty. The world economy has been slowing down over the last years…