Environmentalism as a social movement
Environmentalism and environmental movement
Environmentalism is a broad philosophy and social movement regarding concerns for environmental conservation and improvement of the state of the environment. Environmentalism and environmental concerns are often represented by the color green. 
A concern for environmental protection has recurred in diverse forms, in different parts of the world, throughout history. For example, in the Middle East, the earliest known writings concerned with environmental pollution were Arabic medical treatises written during the "Arab Agricultural Revolution", by writers such as Alkindus, Costa ben Luca, Rhazes, Ibn Al-Jazzar, al-Tamimi, al-Masihi, Avicenna, Ali ibn Ridwan, Isaac Israeli ben Solomon, Abd-el-latif, and Ibn al-Nafis. They were concerned with air contamination, water contamination, soil contamination, solid waste mishandling, and environmental assessments of certain localities. 
In Europe, King Edward I of England banned the burning of sea-coal by proclamation in London in 1272, after its smoke had become a problem. The fuel was so common in England that this earliest of names for it was acquired because it could be carted away from some shores by the wheelbarrow. Air pollution would continue to be a problem in England, especially later during the Industrial Revolution, and extending into the recent past with the Great Smog of 1952.
Environmentalism can also be seen as a social movement that seeks to influence the political process by lobbying, activism, and education in order to protect natural resources and ecosystems. The environmental movement includes the conservation and green politics, is a diverse scientific, social, and political movement for addressing environmental issues.
An environmentalist is a person who may speak out about our natural environment and the sustainable management of its resources through changes in public policy or individual behavior by supporting practices such as not being wasteful. In various ways (for example, grassroots activism and protests), environmentalists and environmental organizations seek to give the natural world a stronger voice in human affairs.
Environmentalists advocate the sustainable management of resources and stewardship of the environment through changes in public policy and individual behavior. In its recognition of humanity as a participant in (not enemy of) ecosystems, the movement is centered on ecology, health, and human rights.
The environmental movement is represented by a range of organizations, from the large to grassroots. Due to its large membership, varying and strong beliefs, and occasionally speculative nature, the environmental movement is not always united in its goals. At its broadest, the movement includes private citizens, professionals, religious devotees, politicians, and extremists.
The roots of the modern environmental movement can be traced to attempts in nineteenth-century Europe and North America to expose the costs of environmental negligence, notably disease, as well as widespread air and water pollution, but only after the Second World War did a wider awareness begin to emerge.
The US environmental movement emerged in the late nineteenth and early twentieth century, with two key strands: protectionists such as John Muir wanted land and nature set aside for its own sake, while conservationists such as Gifford Pinchot wanted to manage natural resources for exploitation. Among the early protectionists that stood out as leaders in the movement were Henry David Thoreau, John Muir and George Perkins Marsh. Thoreau was concerned about the wildlife in Massachusetts; he wrote Walden; or, Life in the Woods as he studied the wildlife from a cabin. John Muir founded the Sierra Club, one of the largest conservation organizations in the United States. Marsh was influential with regards to the need for resource conservation. Muir was instrumental in the creation of the world's first national park at Yellowstone in 1872.
During the 1950s, 1960s, and 1970s, several events illustrated the magnitude of environmental damage caused by humans. In 1954, the 23 man crew of the Japanese fishing vessel Lucky Dragon 5 was exposed to radioactive fallout from a hydrogen bomb test at Bikini Atoll. The publication of the book Silent Spring (1962) by Rachel Carson drew attention to the impact of chemicals on the natural environment. In 1967, the oil tanker Torrey Canyon went aground off the southwest coast of England, and in 1969 oil spilled from an offshore well in California's Santa Barbara Channel. In 1971, the conclusion of a law suit in Japan drew international attention to the effects of decades of mercury poisoning on the people of Minamata.
At the same time, emerging scientific research drew new attention to existing and hypothetical threats to the environment and humanity. Among them was Paul R. Ehrlich, whose book The Population Bomb (1968) revived concerns about the impact of exponential population growth. Biologist Barry Commoner generated a debate about growth, affluence and "flawed technology." Additionally, an association of scientists and political leaders known as the Club of Rome published their report The Limits to Growth in 1972, and drew attention to the growing pressure on natural resources from human activities.
Meanwhile, technological accomplishments such as nuclear proliferation and photos of the Earth from outer space provided both new insights and new reasons for concern over Earth's seemingly small and unique place in the universe.
In 1972, the United Nations Conference on the Human Environment was held in Stockholm, and for the first time united the representatives of multiple governments in discussion relating to the state of the global environment. This conference led directly to the creation of government environmental agencies and the UN Environment Program. The United States also passed new legislation such as the Clean Water Act, the Clean Air Act, the Endangered Species Act, and the National Environmental Policy Act- the foundations for current environmental standards.
By the mid-1970s anti-nuclear activism had moved beyond local protests and politics to gain a wider appeal and influence. Although it lacked a single coordinating organization the anti-nuclear movement's efforts gained a great deal of attention. In the aftermath of the Three Mile Island accident in 1979, many mass demonstrations took place. The largest one was held in New York City in September 1979 and involved two hundred thousand people; speeches were given by Jane Fonda and Ralph Nader.
Since the 1970s, public awareness, environmental sciences, ecology, and technology have advanced to include modern focus points like ozone depletion, global climate change, acid rain, and the potentially harmful genetically modified organisms (GMOs).
Free-market environmentalism is a position that argues that the free market, property rights, and tort law provide the best tools to preserve the health and sustainability of the environment. This is in contrast to the most common modern approach of legislation by which the state intervenes in the market to protect the environment. While environmental problems may be viewed as market failures, free market environmentalists argue that environmental problems arise because of:
Laws that override or obscure property rights and thus fail to adequately protect or define those rights; and
Laws governing class or individual tort claims that provide polluters with immunity from tort claims, or interfere with those claims in such a way as to make it difficult to legally sustain them.
As a rule, therefore, free-market environmentalists believe that the best way to protect the environment is to allow tort and contract laws governing and protecting property rights and tort claims to emerge naturally, so that the protection of property no longer suffers from the defects that give governments, individuals, and corporations perverse incentives to spoil the environment.
Some economists believe that the market is unable to correct the negative externalities of industrial production and excessive depletion of non-renewable resources. In this view, firms receive the full benefit of creating their products in a way that generates pollutants but do not bear the full social costs of the increased pollution. They have no economic incentive to create products in a way that minimizes pollution and absent targeted environmental regulations, will continue to do so. This activity would be rational, because it would be profitable for a firm to overpollute, while letting others absorb the costs of its effects and cleanup. Regarded this way, opponents of market solutions to the problem of pollution assert that market mechanisms left to their own devices contain built-in incentives for environmental degradation. The case for free market valuation is complicated by uneven regulation, e.g. the standards set for recycling (under Resource Conservation and Recovery Act, of 1976) are more strict than the government regulation of mining (General Mining Act, 1872).
Ecological economist Robin Hahnel has enumerated what he terms the four basic defects of a market economy with respect to the environment as: 
overexploitation of common property resources;
too little pollution cleanup; and