How immigration and movement are central in human history

Qu’est-ce que l’immigration?

Wiki a écrit: Human migration involves the movement of people from one place to another with intentions of settling, permanently or temporarily, at a new location (geographic region). The movement often occurs over long distances and from one country to another, but internal migration (within a single country) is also possible; indeed, this is the dominant form of human migration globally.[1] Migration is often associated with better human capital at both individual and household level, and with better access to migration networks. Age is very also important for both work and non-work migration.[2] People may migrate as individuals, in family units or in large groups.[3] There are four major forms of migration: invasion, conquest, colonization and emigration/immigration.[4]

https://www.pressreader.com/france/vocable-anglais/20201029/

Sonia Shah a écrit: “A wild exodus has begun. It is happening on every continent and in every ocean. In response to the climate crisis, plants and animals that until recently scientists thought were fixed to a particular habitat have been seeking out different surroundings. Butterflies and birds have been edging their way towards the Earth’s poles; frogs and fungi are slowly climbing mountain ranges – while in the oceans, even some coral reefs are moving at the rate of a few kilometres per year. And where wild species go, humans may follow. More people already live outside their countries of birth than ever before, some of them pushed by war, floods, rising seas and creeping deserts.

Hi everyone
Persecution, misery, armed conflicts,... the candidates for exile rarely have a choice, and their migration is very often a forced flight. In these situations, fear is the main factor of migration.
In the same way, the host country is afraid that the migrants will steal their pie and therefore people share the same feeling.
Yet when human population number rise,people often work together to find innovative solutions.
People can adapt according to the availability of resources.
We can see that Fear is a destructive feeling and Man should understand that collective intelligence is enriched by the different points of view that immigration offers
For instance in Mexico a rising population prompted farmers to improve the efficiency of wheat production and of cross-border cooperation over water shortages.