Peter Singer argues that ecosystems do not have intrinsic value because
it is not possible to define an ecosystem.
we have no idea of what is good or bad for non-sentient creatures and why it would matter.
only human beings have intrinsic value.
aesthetic experiences are not important.
Environmental ethics is the discipline in philosophy that studies the moral relationship of human beings to, and also the value and moral status of, the environment and its non-human contents.
