There is of course, a huge diversity of other influences on environmental management: philosophical, religious, political, cultural, gender, etc. All approaches have faults: for example, a high-tech approach depends on ongoing breakthroughs in technology, whereas in reality there are often plateaux during which problems increase and solutions or funds to invest in new technology lag. Romantic and ecocentric approaches are all very well, but in a world with a large and growing population, the abandonment of technology or a failure to address human development needs would cause huge misery and unrest – small groups of people can live at one with nature with simple technology, but, with six-and-a-half billion people to feed, the environment somehow has to be stretched.