In addition,many would agree that as a society we bear the ethical obligation to protect the habitability of the planet,and to act as responsible stewards of its bio logical riches for the present and future welfare of the human species.

• 另外，许多人都同意的是，作为一个社会我们承担着道德上的义务来保护星球的可居住性，并为人类目前和未来的福利充当生物繁荣的有责任的义务员。