There's a distinct difference between environmentalism and environmental science. All scientific disciplines have a goal of objectivity, and environmental science seeks to do so in its study of humans and the relationship with the natural world.
Environmentalism takes what environmental science discovers, and makes a subjective appraisal of the goodness or badness of those interactions. Environmentalism is essentially an ethical movement evaluating how humans impact, or are impacted by, the natural world.
In the end, environmentalists often use environmental scientists' findings in their arguments, but that does not mean that every environmental scientist is an environmentalist.
U.S. Population and Global Greenhouse Emissions
Environmental scientists might say that, as of 2008, the U.S. population makes up about 5% of the world total and produces approximately 19% of global greenhouse gas emissions.
On the other hand, an environmentalist might say that, as of 2008, the U.S. only makes up 5% of the world's population, yet produces almost 1/5 of global greenhouse gas emissions, and they would argue that this is a problem that needs to change.
Carbon Dioxide Emissions
An environmental scientist might say fossil fuels used for electricity generation account for about 38% of carbon dioxide emissions in 2012.
An environmentalist might say that we must reduce the amount of carbon dioxide in the atmosphere from its current level by 25%.
The modern U.S. environmental movement was largely inspired from written works in the 19th and 20th century, by authors concerned with human impacts on the environment.
|19th Century Environmentalists|
|Thomas Malthus||In 1798, Thomas Malthus, one of these authors, wrote An Essay on the Principles of Population. He warned of famine and disease caused by overpopulation.|
|Henry David Thoreau||Henry David Thoreau lived from 1817 to 1862, and he is thought of as one of the founders of the modern environmental movement. He sought to address many environmental issues, advocating in particular for wildlife areas to be protected.|
|John Muir||1838 to 1914 spanned the life of John Muir, who is author and founder of the still-present Sierra Club. Muir was an environmentalist who argued that the environment had inherent value beyond human use, and he advocated for its protection.|
|Gifford Pinchot||Gifford Pinchot lived from 1865 to 1946, and he was the first chief of the U.S. Forest System. He advocated for environmental management to protect humans' use of the forest into the future. He called for efficient and sustainable extraction and use of resources.|
|20th Century Environmentalists|
|Aldo Leopold||In 1949, Aldo Leopold published A Sand County Almanac, which was a collection of nonfiction essays arguing that humans must protect the natural world as a system, not just as individual parts. He said that humans are a part of what would eventually be called ecology, and they must protect it for their own survival, as well as for ethical reasons.|
|Rachel Carson||Attempting to generate awareness around the negative environmental impacts of agricultural chemicals, Rachel Carson published A Silent Spring in 1962. Her publication spurred a national environmental movement, and led to laws regulating the use of agricultural chemicals.|
|Paul Ehrlich||In 1968, Paul Ehrlich wrote A Population Bomb. In it, he discussed the potential impacts of population growth, such as food shortages, war, disease, and environmental damages.|
|E.O. Wilson||E.O. Wilson produced his book, On Human Nature, in 1979. He loved to study the interaction between living beings, including humans. In doing so, he bridged the gap between biology and social sciences by examining societies from an evolutionary standpoint.|
Throughout the 1960s, a national environmental grassroots movement grew. By April 22nd 1970, the first annual Earth Day was announced in the U.S., and has been celebrated ever since.
Environmental organizations are typically formed to design or implement environmental initiatives, or to advocate and promote a particular cause. They tend to focus on protection, research, and policy on a wide range of environmental issues.
EXAMPLESuch an organization would be the Nature Conservancy, which is a nationwide U.S. nonprofit dedicated to protecting wilderness areas and natural life. Another organization, 350.org, is an international organization dedicated to slowing climate change worldwide.
Environmental organizations appear at every scale.
Environmental organizations vary in approaches, using tactics such as research, creating awareness, education, lobbying policymakers, funding projects, protesting, and even extreme acts of personal harm and/or property damage.
Source: Adapted from Sophia instructor Jensen Morgan, 350.ORG CC HTTP://BIT.LY/1ZYJRZB