Some academics including Dylan Sullivan and Jason Hickel have challenged this contemporary mainstream narrative on poverty, arguing that extreme poverty was not the norm throughout human history, but emerged during "periods of severe social and economic dislocation," including high European feudalism and the apex of the Roman Empire, and that it expanded significantly after 1500 with the emergence of colonialism and the beginnings of capitalism, stating that "the expansion of the capitalist world-system caused a dramatic and prolonged process of impoverishment on a scale unparalleled in recorded history." Sullivan and Hickel assert that only with the rise of anti-colonial and socialist political movements in the 20th century did human welfare begin to see significant improvement. Environmentalism
Important studies such as the Brundtland Report concluded that poverty causes environmental degradation, while other theories like environmentalism of the poor conclude that the global poor may be the most important force for sustainability. Either way, the poor suffer most from environmental degradation caused by reckless exploitation of natural resources by the rich. This unfair distribution of environmental burdens and benefits has generated the global environmental justice movement.A report published in 2013 by the World Bank, with support from the Climate & Development Knowledge Network, found that climate change was likely to hinder future attempts to reduce poverty. The report presented the likely impacts of present day, 2 °C and 4 °C warming on agricultural production, water resources, coastal ecosystems and cities across Sub-Saharan Africa, South Asia and South East Asia.
Relational poverty is also understood "by the social institutions that organize those relationships...poverty is importantly the result of the different terms and conditions on which people are included in social life"In the United Kingdom, the second Cameron ministry came under attack for their redefinition of poverty; poverty is no longer classified by a familys income, but as to whether a family is in work or not. Considering that two-thirds of people who found work were accepting wages that are below the living wage (according to the Joseph Rowntree Foundation) this has been criticised by anti-poverty campaigners as an unrealistic view of poverty in the United Kingdom. Secondary poverty
Secondary poverty refers to those that earn enough income to not be impoverished, but who spend their income on unnecessary pleasures, such as alcoholic beverages, thus placing them below it in practice. In 18th- and 19th-century Great Britain, the practice of temperance among Methodists, as well as their rejection of gambling, allowed them to eliminate secondary poverty and accumulate capital. Factors that contribute to secondary poverty includes but are not limited to: alcohol, gambling, tobacco and drugs. Variability
Poverty levels are snapshot pictures in time that omits the transitional dynamics between levels. Mobility statistics supply additional information about the fraction who leave the poverty level. For example, one study finds that in a sixteen-year period (1975 to 1991 in the US) only 5% of those in the lower fifth of the income level were still at that level, while 95% transitioned to a higher income category.