There has always been a sub-group of established economists trying to conve
y an environmental critique of the mainstream. This paper traces their thin
king into the late 20th century via the development of associations and jou
rnals in the USA and Europe. There is clearly a divergence between the conf
ormity to neo;classical economics favoured by resource and environmental ec
onomists and the acceptance of more radical critiques apparent in ecologica
l economics. Thus, the progressive elements of ecological economics are inc
reasingly incompatible with those practising neo-classical environmental ec
onomics who try to reduce all concepts to fit within the confines of their
models. A group of people can be identified who teach that ecological econo
mics is nothing more than a name for the link between mainstream economics
and ecology. A new movement and paradigm are unnecessary for such ends. Thi
s viewpoint is argued to be inconsistent with the roots and ideas of the ec
ological economics movement. Ecological economics is seen here to be synthe
sising various types of economics (e.g., socialist, institutional, environm
ental) and moving back to explicit inclusion of ethical issues in the mode
of classical political economy. This inevitably means rediscovering neglect
ed past works and exploring new ways of thinking about socio-economics and
the environment.