Fritjof Capra's update of the Turning Point is The Web of Life, published
by Anchor in 1995. While there is much of the systems view of life found
in his previous publications, including The Tao of Physics, the new book
brings it all together by detailed definitions of ecology and
environmental aspects of life stressing the understanding of systems
theory in biological terms. Much of it sound familiar to die hard Capra
fans, but a revival in terms of the 90''s has been needed. The book can
be found in audio form on Audio Renaissance Tapes. I enjoyed them both.