Humans rely on natural resources – raw materials such as water, minerals, and habitats -- to sustain every aspect of life. Overuse or waste of these resources, combined with rapid population growth, have quickened their degradation, an effect with serious consequences for humans. Many argue that our demands on nature have already exceeded sustainable levels. The most common forms of widespread resource degradation are industrial uses of natural resources, such as farming, fishing, mining and oil drilling. Market-based operations may seek to extend the use of natural resources, but left unregulated, they are unlikely to pursue rigorous conservation.