David Harvey is perhaps the most influential contemporary human geographer in the world. Over several decades, he played a role in the quantitative revolution, but in the early 1970s, he was the seminal figure in the introduction of Marxism into the discipline. In a long series of highly influential books, he has steadfastly advocated on behalf of social justice and offered to bite critiques of capitalism, neoliberalism, inequality, and oppression in all its forms (Harvey, 2011).
David has written the book “The Enigma of Capital”. In this book, he argued about Capitalism. It differs from other modes of production in that it must grow to survive. Under the relentless pressure, of competition, firms must continually innovate; from this basic fact spring both the tremendous vitality of capitalism as well as its greatest weakness (Christianparenti.sbc.edu, 2010).The necessity to extract surplus value inexorably leads to conditions, in which more produces than can be consumed; that is, there is over accumulation, which is built into the DNA of commodity production. Ultimately, this process leads to an excess supply, falling prices, and thus a tendency for the profit rate to decline (Davidharvey, 2008).
Christian Parenti
Christian Parenti is an American journalist, Political writer, good historian and culture critic. He is an investigative journalist. He has done PhD in sociology from the London School of Economics. He has written many books some are very popular in the journalism such as Lockdown America. He conducted the survey of prison and got the information of about regent Eras and into the present era. Parenti is the contributor editor of The Nation. He takes part in the radio show “Doug Henwood and behind The News. He also presents his views in many publications such as Mother Jones and London Review of Books. Students of American and foreign universities have enhanced the knowledge by Parenti. He has taught in different universities. He is a visiting faculty of City University of New York. He has take part in the struggle of politics and many anti wars movements. Parenti has done the analysis of vulnerable states of the world, economical and political disaster of the world in his book. This book author has given the ides tat how to tackle with new crises of climate change. He forecast the danger which is the reaction of United States and other most developed countries. This disaster occurs to the usage of armed lifeboats and borders which is fully armed and aggressive policies which is against for immigration (pcp.gc.cuny.sbc.edu, 2008).
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Tropic of Chaos
In this book, author has focused the Climate Change and the New Geography of Violence comes from an award-winning writer who argues that the new era of climate war has begun--and may blend poverty, inequality and violence with its changing weather problems. It reports from postcolonial states in the planet's mid-latitudes and documents humanitarian issues affected by climate change, and uses a blend of research and investigative reporting to identify issues in climate change ...