With fossil fuels and water running out, and temperatures and sea levels rising due to climate change, whole communities will need to move and resettle. How will human migrations on this scale be managed in our modern world? This foreward-looking book explores these important issues as well as the solutions being put forward by politicians, experts, NGOs, and private citizens. Themes explored include: globalization - the drive to take down trade barriers and make international decisions on issues such as security and the environment; the exploitation of migrants of developing countries and their desire to enjoy the same standard of living as the developed world; the exploitation of people and resources by big business; the effect on migration of having the world at our fingertips through the Internet. Will globalization enhance our world by helping cultures to mix and integrate, or will it lead to tensions as groups fight to resist integration to retain their identities?