These questions have arisen mainly as a result of increased economic integration, but globalization has also meant an important conceptual change in the way we think about the environment. Many of us now see environmental problems as being of international concern, not just national interest—such as protection of the oceans and the atmosphere from pollution. The environment is now considered the “common heritage of mankind,” and environmental problems are increasingly the subject of international efforts because of their cross-border effects and the impossibility that just one or a few nations can solve these problems on their own (Baslar, 2011).