Because humans are thus flexible while many animals are not, humans should make an effort to use up all available space before encroachingupon the habitats of endangered animals.
因为人类是十分灵活的而许多动物却不是，所以人类在占据濒危动物的栖居地之前应该先用完所有可用之地。
2
To the Canon of modern apocalyptic scenarios, add this: millions upon millions of refugees streaming across borders pursued by rising sea levels or encroaching deserts.