Earth Island

To an ordinary person, a life raft, an island, and the earth may not resemble in any way. They¡¯re different in physical appearance, in emotional affections, and even in literary symbolic meaning. But to an environmentalist, these three systems have many similarities in their way of supporting livelihood. With limited resource and unlimited demand due to population, no matter how big a system is (in this case, the planet earth is the biggest comparing to the other two), livelihood must be restricted to sustainable development.
Generally, people in these three systems face similar living condition ¡ª sharing but competing with each other for the limited resource in order to survive. On a life raft, the survivals have limite...