What Are The Causes Of The Sixth Extinction

There have been five major mass extinction on earth triggered by a distinguishable event, but in The Sixth Extinction: An Unnatural History, Elizabeth Kolbert writes of the narrative of the sixth extinction caused directly by human impact. The book identifies the effects of human activity on how, over humans history on earth, the natural world has been affected. Every environmental impact stems into three basic groups of global problems to nature: Pollution, Habitat loss and Invasive Species. Kolbert explains that each impact can be traced back to one source, human industrial development. With each impact various types of life in the natural world are affected. Deforestation, urbanization, and sea level rise contribute to habitat loss worldwide. When humans began to travel they also brought invasive species and disease along with them; as boats only became bigger more and more invasive species travel. This reverse engineering of the planet species, brings new species that don’t have any natural predators, thus having an easier time driving native species out to endangerment or extinction. The different outcomes that come from human pollution is separated throughout the book, but the idea remains constant; with the development of human culture, pollution has drastically impacted a vast extent of species habitats and their environment.

American journalist Elizabeth Kolbert authored The Sixth Extinction: An Unnatural History in 2014. This is a non-fictional account of what Kolbert had named "the sixth extinction": an extinction event caused by humans similar to ones that destroyed earlier forms of life, like the dinosaurs and megafauna.

The chapter then moves to Kolbert’s experience with ammonite fossils in Princeton, New Jersey. While the distinct spiral shape of ammonites is well-known and agreed upon, the exact shape and structure of the mollusk in the shell is heavily debated. Ammonites are then compared to nautiluses, living animals that heavily resemble ammonites, in terms of why one species was able to flourish, while the other was wiped out. Chapter five lays out the concept that ordinarily species go extinct at a gradual, slow pacing, unless of course there is a catastrophic event, such as human meddling or a giant asteroid, in which case the extinction process is expedited. The extinct species that Kolbert studies in this chapter is the graptolite, a long, thin, V-shaped marine animal. The extinction of grapolite is theorized to be due to a drastic change in the ocean. Kolbert additionally tells a theory that, in the future, rats will be the predominant race on Earth, overtaking even humans. This is all based on the fact that humans have too drastically changed the Earth’s composition and wherever humans go and change, rats are there to follow. Thus we are ushering in the Anthropocene, or the “age of humans,” a time period in which humans have wrecked up the planet to the point of no

She explains the concept of ocean acidification, and what humans are doing to help it along, as well as the theory that humans bred with Neanderthals until they were no longer in existence. Kolbert ends on a hopeful note, saying that humans can change their ways very easily and save many species from extinction; however, if we do not change, there very well might be another mass extinction soon approaching.

We are slowly killing our planet and our co-habitants at such a high rate that some say we are responsible for the sixth mass extinction. In the book The Sixth Extinction: An Unnatural History author Elizabeth Kolbert an American journalist and professor at Williams College travels to different parts of the world to search for evidence that the sixth extinction is in fact happening now. In The Sixth Extinction Kolbert demonstrates the many ways in which humans are speeding up the loss of so many species. The question is, is it possible to stop or even slow down the loss of other species due to human actions? When we think about extinction we tend to think of cataclysmic events such as the meteor that struck Mexico’s Yucatan peninsula 65 million years ago.

Chapter 12 of the book The Sixth Extinction: An Unnatural Extinction by Elizabeth Kolbert is all about the differences between Neanderthals (Homo neanderthalenis) and modern humans (Homo sapiens). Most of the differences were explained clearly and concisely, but one was very contradictory. Could Neanderthals see beauty? I believe that yes, they could, just perhaps not in the exact same way that modern humans do. They could see the beauty of nature, the beauty of living things, like animals flowers, trees, and each other.

List examples of human activities that are suggested to be key triggers for the sixth mass extinction.

The scientific community applauds Elizabeth Kolbert for her recently published The Sixth Extinction: An Unnatural History, as it exceeds scientific and literary standards. Elizabeth Kolbert, born in 1961, is a American journalist and author and has won more than ten awards since 2005. In fact, The Sixth Extinction: An Unnatural History recently won her the Pulitzer prize for general nonfiction writing. For a scientific overview of her book, it discusses quite exactly what the title states. There have been five mass extinctions throughout the history of this earth, and the sixth is currently happening and being driven by humans. Kolbert discusses several different species that have become extinct or are on the brink of extinction. She includes history of mankind discovering the concept of extinction as they gradually began to wrap their brains around the idea in the early eighteen hundreds. Lastly, Kolbert masterfully describes her own experiences face to face. She

Citizenship What impact are you having on the sixth extinction? After reading the novel The Sixth Extinction: An Unnatural History, written by Elizabeth Kolbert, one wonders if indeed the sixth extinction is the result of actions taken by Homo sapiens. Kolbert describes the scientific theories supporting the five mass extinctions that took place in the past and provides a disturbing theory regarding the sixth extinction period. Kolbert writes, “. . . we are deciding, without quite meaning to, which evolutionary pathways will remain open and which will forever be closed.”

The initial stage was thought to have been a deadly drop in sea level that led to a loss of habitat stability. The second stage would possibly have been the volcanic eruptions and the release of carbon dioxide into the air causing oxygen levels to decrease. The final stage would possibly have been the rise of the sea levels causing massive floods and destroying near shore habitats. Having all of these three stages at one time would have caused this massive kind of extinction. However, if only one of these stages had happened this extinction would not have been nearly this massive. Studies show that even though this mass extinction may have seemed like a fast-moving process, it took over a million years to

Chapter 2: In chapter two of The Sixth Extinction the book explains how extinction is one of the first scientific concepts that children learn in school. Also, it talks about how children in the modern times know more about extinction than scientists did hundreds of years ago. Scientists first theorized the concept of extinction in the late 18th century. In this chapter the book also talked about how a naturalist named Georges Cuvier studied the fossils of an extinct animal called the American Mastodon, or Mammut Americanum, and decided that this creature, like many others, must have all died in the past. In his lifetime, many of Cuvier’s ideas about extinction were harshly criticized, but now, hundreds of years later, Cuvier is praised for

The sixth mass extinction is on the way and could be as massive as the extinction that wiped out the dinosaurs (Kolbert, 2014). Before learning more about the sixth mass extinction, you’ll have to first understand what biodiversity is and what will happen when you tamper with it. According to Anup Shah, author of Why is Biodiversity Important? Who Cares, biodiversity means the variety of life on Earth or in an ecosystem. Every species plays an important role in the ecosystem or in the world, no matter how big or small. A way to incorporate this into easier terms is the food chain or food web. Without a certain species in the cycle, you’ll be losing another species and so forth (Shah, 2014).

The article “Mathematics Predicts a Sixths Mass Extinction” talks about how by the year 2100 the oceans will hold enough Carbon Dioxide to cause the planet towards its sixth mass extinction. In the (recorded) planet's history there have been five mass extinctions, which involves a process called the carbon cycle. The only problem with guessing the pattern is no true information that says the reason for these mass extinctions is a “significant jolt” of carbon in the carbon cycle. Professor Daniel Rothman “has analyzed significant changes in the carbon cycle over the last 540 million years” this time includes the five mass extinctions. He found “thresholds of catastrophe” which if the carbon cycle exceeded would tip the balance of the environment

There have been five well known extinctions on this earth. The one most well known is the mass extinction that ended the dinosaurs. Mass extinction is often described as the elimination of a large number of species in a short period of time. Despite what many think, the elimination of species is almost commonplace at this point. The Earth is currently in the middle of a sixth mass extinction, and it’s been caused by the human race.

Since before the industrial evolutions humans have been pumping green house gasses—carbon dioxide, water vapor, methane, nitrous oxide, and chlorofluorocarbons— into the atmosphere however, it wasn’t until recently that the amounts being produced are shoving the Earth into a sixth extinction. While the causes of this upcoming extinction are constantly debated on it has earned itself the name Holocene extinction. This name is derived from the theory that humans are the main contributors to this extinction. To investigate the cause Elizabeth Kolbert, and American journalist and professor at Williams College, took the world on a wild and saddening journey on the human contribution to this looming extinction in her novel, The Sixth Extinction; An Unnatural History. Not only does Kolbert’s book explain how humans have contributed to global warming and its effects on life on land but also ocean acidification and how life under the sea has changed over the years.