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The abolition of slavery was cause of free African-Americans.

Mass extinction events may be the result of multiple ecosystem stresses that reach the level where the ecosystem unravels. Other than the meteor impact that destroyed the dinosaurs, the rest of the mass extinctions seem to have multiple contributing causes, and each one ultimately had an energy impact on life processes. The processes can be complex and scientists are only beginning to understand them. This essay will survey mass extinction events and their aftermaths in some detail, as they were critical junctures in the journey of life on Earth.

The most well known cases of slavery occurred during the settling of the United States of America.

At this juncture, I will ask my readers to perform an exercise that I first saw described by Peak Oil advocate , which is to lay aside data and graphs and just think about how energy makes everything in our daily lives possible. Think about your food, water, mode of transportation, and materials that comprise your home and possessions, and think of the role that energy played in providing them. Think about the energy that you use each day in powering your home and in your transportation, even if it is just walking. Then imagine running out of energy. When you flipped on a light switch, nothing happened. When you turned on the tap, no water came out. Your refrigerator stopped working, food deliveries to your community ceased, and no electricity, oil, gas, coal, or even wind or water power was available. Everything in your life would come to a sudden halt. When people have tried to demote energy below spirituality, social relations, or even made it irrelevant to economics, my question is for them to see what they can forego the longest: prayer/meditation, social interaction, sex, or energy. The fossil fuels burned to power industrial civilization provide several hundred energy slaves for each American and no less than hundreds per person in every industrialized nation. All that those energy-leveraged humans do is direct the energy, like holding the reins of a gigantic beast that each person rides each day. Airline pilots half-joke that they begin their workday by strapping jet airliners to their waists. Without that energy to direct in the myriad ways that industrialized humans use it, modern civilization would come to an abrupt end.

An Online Reference Guide to African American History

Americans have come to the assumption that slavery was imposed on people of one color or race....

The rise of America in general was accompanied by slavery and the settlers learned early on that slavery would be an effective way to build a country and create free labor.

The indigenous peoples, according to our sources mostly peaceful Tainos and warlike Caribs, proved to be unsuitable for slave labour in the newly formed plantations, and they were quickly and brutally decimated.

Finally, the North won, and the slaves became free.

At that time, African Americans were discriminated against by white people.

As will be explored in this essay, all of the marine life have anoxia as a suspected contributing cause, so oxygen is a major area of interest among extinction specialists. Whether oxygen levels were also significant contributing causes of evolutionary innovation is another area of interest today. Again, to food chains. Even if the first animals did not respire anaerobically, they adapted to aerobic respiration early on and then became dependent on it. There would be no going back for animals; all except those few adapted to and anoxic environments went “all in” with aerobic respiration.

The Cambrian Explosion’s iconic animal was the . As a child, I read every paleontology text in my elementary school’s library, and I have fond memories of imagining trilobite lives. Was there love among the trilobites? Among the protists? The bacteria? To a scientist, those questions might be unanswerable and even meaningless, but a mystic might pursue them. I will not wax too mystically in this essay (I do it ), but that may well be the big question of life on Earth and . The nature of consciousness and love in the Cambrian, or the lack thereof, as much as it may always be a mystery, does not invalidate life’s arc through the evolutionary process; it only challenges materialism.

These slaves were brought to America on a Dutch ship and were sold as indentured slaves....
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Finally, African Americans gained the right to vote.

Canals were competitive with railroads, sailing ships were competitive with steamboats, and watermills were competitive with steam-powered mills until around 1850. It for coal-powered steam to prevail against wind and water power. Water and wind power were not only geographically restricted, but they were also dependent on the weather. Calm air (and storms) and droughts (and floods) were the bane of wind and water power. Coal did not have those restrictions. American towns were built on hillsides above watermills to house the workforce. As coal-power made its ascendance, those mills and towns were abandoned. The pollution of industrial America’s cities could rival London’s. A visitor to Pittsburgh in 1841 described approaching the city as entering a dark cloud of coal smoke; the peoples and buildings inside it were blackened like some vision from hell. Far from an indictment, however, the visitor happily saw it as “progress” that would soon arrive at his home town of Cincinnati. The rivers of the Eastern Woodlands ran blue and clear before Europeans arrived. When I lived in Ohio, the Ohio River at Cincinnati in the 1990s had brown, stinking waters that nobody in their right minds would swim in. The Cuyahoga River that flows through Cleveland , and the 1969 fire finally led to environmental legislation that began to clean up the USA’s lakes, rivers, and air. The in the 1980s rivaled .

Therefore on cannot talk about when slavery began in North America.

As with the , contemporary New English observers noted the local climate changes in New England by the late 1700s, when the summers got hotter, the winters colder, and the land became more arid. Streams disappeared during the summer and flooded in the winter. In his classic study, William Cronon noted that New England became “sunnier, windier, hotter, colder, and drier” than before it was deforested. The eastern seaboard began turning to British coal soon after the American Revolution. , and early America relied on British coal. It was not until canals and railroads were built that the USA began to use its domestically mined coal. The anthracite mines of Pennsylvania turned Pittsburgh, Buffalo, Philadelphia, and other cities in the region into the heart of early American industry. Steam locomotives were , and is credited with building the first , after many years of effort. The opened for business in 1825, and the was built between Baltimore and the Ohio River in 1830, as Baltimore competed with the canals that serviced Philadelphia and New York. Railroads became humanity’s first low-energy transportation lanes that were not bodies of water (roads kind of qualified, but they were minor advances compared to railroads). Many American cites were not built on bodies of water but along rail lines and, later, roads traveled by cars and trucks.

Slavery has concentrated on African slaves In the United States.

Although the power of coal was primarily responsible for the USA’s great industrial ascent in the late 19th century, the wind and water power that Europe exploited for several centuries remained competitive with steam power until the last half of the 19th century, and Americans only turned to coal as the forests disappeared. All along the USA’s eastern seaboard, mills appeared along the streams and rivers. In the hills surrounding Providence, Rhode Island in the 1830s were 120 mills, which were all water-powered. In 1838, there were only two thousand steam engines in the USA, and all but 600 were used to propel boats and trains. In the USA in 1840, 60,000 small water-powered establishments existed alongside fewer than 1,200 steam-powered manufacturers. Water was still the dominant industrial source of power.

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