Save Planet Earth - Essay by Albertthaddeus
The grew , and there were no more island barriers on the Tethys’s east end. The was finally squeezed out of existence by islands that became part of Eurasia. The shallow margins of the Tethys became the greatest oil source in Earth’s history. The and Paleo-Tethys oceans also formed oil deposits, but about initially formed during the Mesozoic’s anoxic events, primarily along the Tethys’s margins. In the Middle East, Caspian Sea, Western Russia, North Africa, Gulf of Mexico, and Venezuela virtually all of the oil deposits were laid down by dying and preserved organisms along Tethyan shores. In the early Triassic, along the west end of what became North America, oceanic plate subduction under continental plates that continue to this day. The foundations of the Sierra Nevada mountain range were formed then. I have spent .
Our Earth is the most beautiful planet in our solar system
don't have a chance to share in the riches that the planet can offer because some people are taking off so much of the pleasures of this world, and there's only so much to go around." — Sister Dorothy Stang, an eco-activist nun from Dayton, Ohio, who in 2005 was murdered in the Brazilian Amazon "The ultimate test of man's conscience may be his willingness to sacrifice something today for future generations whose words of thanks will not be heard." — Gaylord Nelson
former governor of Wisconsin, co-founder of Earth Day "To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment." — Ralph Waldo Emerson "Do not wait for extraordinary circumstances to do good action; try to use ordinary situations." — Jean Paul Richter, German Romantic novelist and humorist "Determine never to be idle.
In the Eastern Woodlands of North America, natives began domesticating plants before 2500 BCE. It may well be an independent domestication event. Those horticulturalists largely became matrilineal societies. The was succeeded by the , in which maize seems to have made its way from Mesoamerica. Around 500 CE, the , the bow and arrow supplanted the spear and atlatl, and the "" - maize, beans, and squash - began dominating food production. When the began around 800 CE, intensive maize production began and spread, which led to rapid population growth and the rise of , which led to the only pre-Columbian North American city, at , which collapsed, almost certainly from environmental over-taxation and a cooling climate, before 1400 CE. The mound-building Mississippian culture had a familiar trajectory, as intensive agriculture led to an agricultural surplus. Men, who controlled the surplus and rose to dominance, commandeered the local religion into granting them divine status or sanction and erected monumental architecture to themselves and their divine yet invisible patrons. As in , they made their structures from earth instead of stone. Soil fertilization for maize-growing was not practiced, which rapidly depleted the soils (there were no domestic animals to provide manure, and the Indians did not adopt the night soil practices of East Asia), and the cooling of the , along with declining soil fertility, spelled the decline of Mississippian culture before Europe's first invasions of the Columbian era. The and its aftermath was a catastrophe for Mississippian peoples. Later European invaders . By the 1600s, when England began invading the Eastern Woodlands, the Mississippian culture had vanished, and by the late 1700s, the Southeastern Indians not only retained no memory of who made those mounds that they lived near, they also had no memory of the social order that built them. The Cherokee seemed to retain some vestigial memory of Mississippian culture, as they had stories of despotic Indians that the Cherokee annihilated, but the mounds had become the source of a myth that spirit warriors lived in the mounds and could issue forth and fight Cherokee enemies.
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The moon rocks retrieved by astronauts are still being tested, as new experiments and hypotheses are devised. In 2012, which resulted from testing moon rocks for the ratios (both are stable isotopes), and it has brought into question the hypothesis that the Moon was formed by a planetary collision more than four billion years ago. The titanium ratio was so much like Earth’s that a collision with Earth forming the Moon has been questioned (as very little of the hypothesized colliding body became part of the Moon). The collision hypothesis will probably survive, but it may be significantly different from today’s hypothesis. , as well as , and their ages confirm that geologists have derived, and meteorite dates provide more evidence that our .
Energy and the Human Journey: Where We Have Been; …
Another major advance happened in the late 20th century: the ability to analyze DNA. was discovered in 1953. In 1973, . In 2003, . was accomplished in 2005, for orangutans in 2011, and for in 2012. The comparisons of human and great ape DNA have yielded many insights, but the science of DNA analysis is still young. What has yielded far more immediately relevant information has been studying human DNA. The have been identified. Hundreds of falsely convicted Americans have been released from prison, and nearly 20 from , due to Human DNA testing has provided startling insights into humanity's past. For instance, in Europe it appears that after the ice sheets receded 16,000 to 13,000 years ago, , and for all the bloody history of Europe over the millennia since then, there have not really been mass population replacements in Europe by invasion, migration, genocide, and the like. Europeans just endlessly fought each other and honed the talents that helped them conquer humanity. There were , but other than hunter-gatherers being displaced or absorbed by the more numerous agriculturalists, there do not appear to be many population replacements. In 2010, suggested that male farmers from the Fertile Crescent founded the paternal line for most European men as they mated with the local women. DNA testing has demonstrated that all of today’s humans are , of whom a few hundred and conquered Earth. The , as well as genomes of other extinct species, and for a brief, exuberant moment, some scientists thought that , -style. Although dinosaur DNA is unrecoverable, organic dinosaur remains been recovered, and even some proteins have been sequenced, which probably no scientist believed possible in the 1980s.