There are different types of migration. The green countries are for economic purposes, but also for better living conditions. Gray regions are where most migrants are from due to their specific reasons. Red arrows à high skilled individuals going to countries for higher salaries/wages. There is also the idea of brain drain. Blue arrows represent the less qualified individuals going to countries for better living conditions. Many Hispanic people are migrating towards US. While North African populations are going to Europe whether it is legal or illegal but for a better life. ... Read more about Migration Flows
As more people are leaving their country of origin to go work/study abroad or to have a better life, the country of origin is left with less qualified people causing the country to become weaker hence accentuating poverty, corruption in the government, etc. Human smuggling and trafficking ‘feeds on poverty’ and it creates ‘greater restrictions to legal immigration.’ Global rules are needed because people are doing whatever it takes to live a better life. ... Read more about Human Trafficking and Smuggling
Total global fish production, including both wild capture fish and aquaculture, reached an all-time high of 154 million tons in 2011. Wild capture was 90.4 million tons that year, up 2 percent from 2010. This followed a 1.6-percent decline from 2009 to 2010. The 2011 global capture figure nearly matched the 2007 total of 90.3 million tons, which broke a four-year pattern of declining global wild capture. Since the late 1980s, however, wild capture production has essentially stagnated.