Reflections on "situation ethics;

Though the experiment has not lasted long,the appearing new ethic dimensions are worth our attention: the development from extent ethics to circumstantial ethics,from individual ethics to collective ethics and from regional ethics to global ethics.

In past more than one century,from gestation,creation to evolvement,environment ethics is established and has its position in science knowledge systems.

Animal rights is an important problem of western environment ethics, this paper divides the thoughts on animal rights into three kinds: simple animal rights thought in ancient times, animal rights thought in modern times and contemporary age, according to the impact on the relationship between human beings and animals caused by the changes of natural views and modes of production in human history.

In the environment ethics,values of nature refer to its usefulness to human beings,namely external or tool values of nature.

The environmental ethics and sustainable development tourism;

The Transformation of Value Standpoint in Environmental Ethics:From Westernization to Chinese Characteristics;

On Development of Discipline of Environmental Ethics in China;