The World's Best Book Summaries
How do you measure forecast accuracy? What are some challenges in evaluating whether a forecast is correct and to what degree? Given all the ways our brains can work against us, forecasting accurately is incredibly difficult. But evaluating an existing forecast’s accuracy in the first place presents difficulties of its own. Read about the difficulties of measuring forecast accuracy.
What is groupthink psychology? How does it affect decision-making within a group of people? Why is groupthink dangerous? In psychology, groupthink is a phenomenon that occurs when the desire for group harmony overrides people’s critical thinking and autonomy. When groupthink takes hold, group members no longer challenge each other’s assumptions. Keep reading to learn about groupthink psychology.
What is a black swan event? Are black swan events truly unpredictable or just highly improbable? A black swan event is an extremely rare and unpredictable event or occurrence that has major negative consequences. The concept is based on the idea that someone who has only ever seen white swans would naturally assume that all swans are white and would therefore be completely unable to predict the existence of a black swan. Keep reading to learn about the concept of a black swan event.
What is a confirmation bias in psychology? What role does it play in human behavior and decision-making? In cognitive psychology, confirmation bias refers to the tendency to seek and interpret information based on our prior beliefs about it. Confirmation bias saves cognitive resources involved in decision-making, but it can lead to faulty conclusions which can have drastic effects in critical situations. Read about confirmation bias psychology and some examples of how it manifests in decision-making and behavior.
What caused the Permian mass extinction? How long did it last and how many species did it eliminate? The Permian mass extinction was the most devastating of the Big Five mass extinction events in the history of life on earth, eliminating 96% of the species. Scientists attribute it to the sudden warming of the climate as a result of the increased concentration of carbon in the air. Read about the Permian mass extinction, its causes and effects on the animal kingdom.
What are the effects of ocean acidification? What role does an increase in oceanic acidity play in the biodiversity of marine life? The effects of ocean acidification are so destructive that it’s been dubbed the global warming’s “evil twin.” Specifically, ocean acidification is causing an unprecedented reduction in oceanic biodiversity as tehe increased CO2 concentration is affecting the internal processes of the marine microbiome. Keep reading to learn about the destructive effects of ocean acidification on marine life.
What are the effects of global warming on animals in the tropics? Why do researchers project the tropical species to be more affected by climate change than their cold-climate counterparts? Most people think of global warming primarily as a threat to cold-climate species such as polar bears, penguins, and seals. However, the effects of global warming on animals in the tropics are projected to be even more drastic, according to researchers. Keep reading to learn about the effects of global warming on animals in the tropics.
Why are coral reefs dying? What are the main driving factors behind the projected coral reef extinction, according to scientists? Corals have endured for many geologic epochs, but researchers believe they won’t survive the Anthropocene. Instead, they’re on a course to be the first major ecological system to go extinct. The two main reasons why coral reefs are dying are ocean acidification and climate change. Keep reading to learn why coral reefs are dying.
What is the species-area relationship? How is it expressed in mathematics? The species-area relationship is the relationship between the area of the species habitat and the number of animal species that inhabit it. In 2004, scientists used the concept, which is expressed mathematically as a curve, to calculate the species extinction risk at different levels of global warming. Keep reading to learn about the species-area relationship.
What are the two major theories of extinction? How do they explain the mass extinctions that have happened on planet Earth? Which theory holds more weight? Theories of extinction can be categorized into two major schools of thought: catastrophism and uniformitarianism. Catastrophists believe extinctions happen as a result of major catastrophes. Uniformitarians, on the other hand, believe in a gradual process of extinction due to evolution. Keep reading to learn about theories of extinction and how they were developed.