During an ice age the conditions on Earth favor glaciers and cold deserts over more hospitable environments. It was the failing of two levees against which body of water that caused much of the flooding of New Orleans during Hurricane Katrina? What are some of the common adjustments that limit or reduce the effects of natural hazards? Which of the following continents was not covered by ice during the Pleistocene ice age. Rich soils deposited by the original mudflow resulted in an agricultural center being developed, drawing a large number of people to inhabit the area. But the heat that ocean currents fail to transport northwards would make parts of the Southern Hemisphere even hotter. The advancing front of a glacier acts like a bulldozer, scraping across the landscape and carving out new features. Regional subsidence was slower than was appreciated. ; And as it begins to melt, it is reshaping the Arctic. Is global warming slowing down? The global average surface temperature rose 0.6 to 0.9 degree… There was a forest but it dried, making a desert, and animals in the forest must have died or dried up. Rising global temperatures will eventually cancel out any localised cooling caused by loss of Arctic sea ice, although they said it is not possible to predict when this will happen. Why Global Warming Can Mean Harsher Winter Weather. Scientists look at the big picture, not today's weather, to see the impact of climate change All of the following responses to a hazard would be considered anticipatory, EXCEPT... How might climate change affect natural hazards? With that definition and some horrible puns out of the way, let’s thumb through some data. Many hazardous natural events are controlled in part by the amount of water in the system. Which of the following is a direct effect of a disaster? Antarctica has not responded as quickly to climate change as the Arctic, but Earth’s southernmost continent is still losing ice. What's worrying is that for some years now, global climate models have been predicting a future weakening of the Gulf Stream as a consequence of global warming. Explain how glaciers can change the landscape and physical characteristics of continents. Volcanic Eruptions are regional because only certain places have volcanoes, they are not everywhere. Global warming is the unusually rapid increase in Earths average surface temperature over the past century primarily due to the greenhouse gases released as people burn fossil fuels. Many hazardous natural events are controlled in part by the amount of water in the system. an event in which damages are such that recovery and/or rehabilitation is a long, involved process. No, our world continued warming after 1998. If the North Atlantic current slows dramatically, then the entire Northern Hemisphere would cool; a complete collapse of the current could even reverse global warming for about 20 years. We often call the result global warming, but it is causing a set of changes to the Earth's climate, or long-term weather patterns, that varies from place to place. Some recent cold spells have been caused by a dreaded weather system called the polar vortex. It’s like your grades. Scientists predict the range of likely temperature increase by running many possible future scenarios through climate models. "In a 2009 study, presented by the National Academy of Science, 97% of climate scientists agree that human activity is causing global warming." Why do you think there are sometimes strained relationships between the media and scientists? Experiments with modern climate models suggest that such an event would be unlikely. To many of these groups any discussion of global warming or climate change is a form of media alarmism. Global temperatures are expected to rise much faster than they would have naturally, which may result in severe environmental and climate changes across the globe. Global Warming Effects Around the World. Which of the following best describes the impact of glaciers upon the surface of the earth? Greenhouse gases are best described as _______. Without the greenhouse effect, Earth would be _______. Explain why the greenhouse effect is not entirely a man-made phenomenon. Why did scientists think the world was experiencing global cooling between the 1940's and 1970's. Why does population increase affect the number of catastrophic events? No, “global warming” means Earth's average annual air temperature is rising, but not necessarily in every single location during all seasons across the globe. Colder places are warming faster than warmer places. Check out my website or some of my other work here . Winters are warming faster than summers in many places, and colder parts of the U.S. are warming faster than hotter ones. Ice shelf disintegration and glacier acceleration in Antarctica could raise global sea level significantly, and the effects would be keenly felt along U.S. coastlines. Hot Spots; Hot Map; Impacts; Solutions; Extreme Wet A warmer climate spurs the evaporation of water from land and sea and allows the atmosphere to hold more moisture—thus setting the stage for more extreme precipitation. With respect to natural hazards, refers to an announcement that states that a particular event such as a flood is likely to occur at a particular time, often with some probability as to how likely the event is. What aspect of the November 13, 1985, volcanic eruption of Nevado del Ruiz was mostly responsible for the large death toll? In general, the frequency of an event is _______ its magnitude. Warmer ocean waters will channel more energy into the atmosphere. How does human population increase result in disasters becoming catastrophes. Tweet. Which of the following is an example of how human activities are likely to increase the impact of natural disasters? Many atmospheric gases help trap heat in Earth's atmosphere, including natural gases like carbon dioxide. What is the difference between a forecast and a prediction? What event with a low catastrophe potential kills a large number of people each year? Even if global warming is a natural part of Earth's climate, human activities are accelerating it. It so happens that during winter 2010, one of those conditions was a bit unusual. Follow me on Twitter . Which of the following is not a manmade cause of global warming? A statement that an event with specified magnitude, such as a tsunami or flood, will happen during a particular time interval. c) They are natural processes that become hazards when people live or work in areas where they occur. At 1.5 degrees Celsius warming, about 14 percent of Earth’s population will be exposed to severe heatwaves at least once every five years, while at 2 degrees warming that numbe… How does a catastrophe differ from a disaster? Why might global warming increase the magnitude and/or frequency of weather-related hazards? In what way was the 1845 mudflow on Nevado del Ruiz responsible for the huge amount of lives lost in the same area in 1985? The risk that society or individuals are willing to endure. Nres 102 Final: The Atmosphere, Climate, and global warming study guide by Josh_Acosta includes 37 questions covering vocabulary, terms and more. Based on your knowledge of the magnitude-frequency concept, which would you expect to do the most work altering the landscape in a given area? An event or situation causing sufficient damage to people, property, or society in general from which recovery and/or rehabilitation is long and involved; natural processes most likely to produce a catastrophe include floods, hurricanes, tornadoes, tsunamis, volcanoes, and large fires. Contrast with forecast, which provides a percent chance of something happening. Have you read? . It is the most serious danger that humans face today. Learn about the impact and consequences of climate change and global warming for the environment and our lives. What is the role of history in understanding natural hazards? Which of the following hazards has a high catastrophe potential? [] Thanks to natural climate variability, volcanic eruptions, and to a smaller extent, low solar activity, the rate of average global surface warming from 1998–2013 was slower than it had been over the two preceding decadesSuch varations in the rate of warming from decade to decade are common. Acceptable risk is the risk we are willing to endure in a given situation. Explain why scientists are concerned about human activities that cause global warming if global warming is caused by the greenhouse effect and the greenhouse effect is a natural part of Earth's climate. But no. From an environmental viewpoint, risk may be considered as the product of the probability of an event times the consequences. Global warming heats up Earth and some animals are not used to a warm environment. Global warming is the unusually rapid increase in Earths average surface temperature over the past century primarily due to the greenhouse gases released by people burning fossil fuels. And more importantly, they cannot account for the current period of rapid warming Earth has experienced since the pre-Industrial period (the period between 1850 and 1900), and particularly since the mid-20 th Century. Ocean convection is regional because certain places aren't near the ocean. What is the role of global climate in the occurrence of natural hazardous events? Greenhouse gases are essential to support life on earth. But Milankovitch cycles can’t explain all climate change that’s occurred over the past 2.5 million years or so. As ice caps melt and wildfires rage, global warming is occurring faster than we could have imagined. These predicted impacts of global warming could have severe, negative impacts to humans. Yes, it's cold. 2 Minute Read The planet is warming, from North Pole to South Pole. The Arctic is warming at more than twice the rate of the rest of the world. With respect to natural hazards, the announcement of a possible disaster such as a large earthquake or flood that could occur in the near future. An example of sound land-use planning would be... All of the following are types of artificial control used to control natural hazards, EXCEPT... a) prohibiting construction on a floodplain. Emission Scenarios. Warmer ocean waters will channel more energy into the atmosphere. Global warming Earth’s plants are countering some of the ... which could make some places less friendly to plants that now thrive there. Which of the following best explains why air pollution that was once blamed for global cooling is now considered responsible for global warming? That purple border is the jet stream or polar vortex. Probably yes, at times, and it’s a real cause for concern. Quizlet flashcards, activities and games help you improve your grades. Global temperatures are expected to rise much faster than they would have naturally, which may result in severe environmental and climate changes across the globe. Welcome to the new normal, courtesy of global warming, where the Arctic can't even remain cold in the dead of winter. What percentage of New Orleans flooded after the landfall of Hurricane Katrina and the failure of levees? Counter to what most expected in a globally warming planet, the Southeast of the U.S. has been getting colder during winter and spring months instead of warmer. With respect to natural hazards, refers to the actions of individuals, families, cities, states, or entire nations taken before a hazardous event to plan for that event and to minimize losses. Explain why some groups doubt the occurrence of global warming and global climate change. This comes as news reports and blogs question whether global warming is even occurring, given local weather conditions and the fact that warming did not occur at the same rate in the past 10 years as it did during the ‘80s and ‘90s. This “Arctic amplification” is driven by a handful of factors; the largest of these is the … There is generally an inverse relationship between the magnitude of an event and its frequency. How may the risk of a particular event be defined? Why might global warming lead to the extinction of some organisms? Greater numbers of people occupy marginal lands in the path of hazardous processes. But all this talk of global warming is not overblown. We wish that were true! List some potential linkages between hazardous events. Some groups point out that water is a more significant contributor to warming in the atmosphere. All of the following hazards are linked to hurricanes, EXCEPT... What regions of the world are at risk for volcanic eruptions? Jared Bakko hauls a boat down a flooded road … What is the main conclusion of the magnitude-frequency concept? Why does population growth result in more death and damage from natural hazards? Global warming has shown that permafrost is not so permanent after all. Most of us agree that the acceptable risk of driving in a car is _______ whereas the acceptable risk from a nuclear power plant is _______. Which of the following is true of natural hazards? Which of the following statements is best supported by this study? Even if global warming is a natural part of Earth's climate, human activities are accelerating it. Which of the following is predicted to be an impact of global warming? People can avoid building on floodplains, in areas where there are active landslides, or in places where coastal erosion is likely to occur. Studies say system of ocean currents that plays vital climate role is losing strength. Which of the following is an example of a linkage between hazardous events? Solar insolation causes global because everyone gets sun. This will result in a faster increase in atmospheric carbon dioxide and more rapid global warming. To understand why, you have to first know the difference between weather and climate. Global warming - Global warming - Carbon dioxide: Of the greenhouse gases, carbon dioxide (CO2) is the most significant. Instead, a moderate weakening of the thermohaline circulation might occur that would lead to a dampening of surface warming—rather than … Why is land-use planning typically more effective than artificial control of natural hazards? Most hazardous natural processes are not amenable to artificial control. If the atmosphere didn't trap some of the sun's heat, we'd freeze. Which is the correct series indicating what hazards, on average, has caused the most deaths per year in the United States (most to least)? Natural sources of atmospheric CO2 include outgassing from volcanoes, the combustion and natural decay of organic matter, and respiration by aerobic (oxygen-using) organisms. Warm —According to the report, extreme temperatures on land are projected to warm more than the global average surface temperature, with substantial differences from place to place. The condition is the “Arctic Oscillation.” The positive phase (left) has higher air pressure in the mid-latitudes than in the Arctic, making for a milder winter for the U.S. Which of these is an opinion about global warming? People who live in North America sometimes see winter weather forecasts that look like this. Why wasn't global warming a problem 1,000 years ago? And a cooler north isn’t necessarily good news. Which of the following is not true concerning the interglacial period that began 15,000 years ago? So while human activities exacerbate the natural greenhouse effect, it is not solely due to them. Therefore, when the ice age ended and glaciers retreated the more hospitable grasslands and forests that developed hosted greater biodiversity. One or more of the following criteria are met: With respect to natural hazards, refers to physical, chemical, or biological events that occur before an event such as a flood, earthquake, or volcanic eruption. Global warming to give colder winters and hotter summers . Most land regions will see more hot days, especially in the tropics. A new study looks at the complex relationship between global warming and increased precipitation. This can carve out new courses for rivers and lakes and flatten out landscapes. Effects of climate change on oceans provides information on the various effects that global warming has on oceans.Global warming can affect sea levels, coastlines, ocean acidification, ocean currents, seawater, sea surface temperatures, tides, the sea floor, weather, and trigger several changes in ocean bio-geochemistry; all of these affect the functioning of a society. Differentiate between a catastrophe and a disaster. If one semester you get all Bs and Cs, and the next you get all As and Cs, your grade point … What were the two main lessons learned forth 1985 eruption of Nevado del Ruiz in Colombia? This rule of thumb is really dominated by the fact that the arctic is the fastest-warming large region on the planet. Therefore, they argue that carbon dioxide is not a significant greenhouse gas so any observed warming is not the result of human activity. To what does the concept of acceptable risk refer? If the earth was like a greenhouse, the carbon gases in the atmosphere are like: The glass. Humans didn't burn a lot of carbon-based fuels back then. What are some disaster prediction methods? It has also been speculated that, as a consequence of large-scale surface warming, such changes could even trigger colder conditions in regions surrounding the North Atlantic. What is the difference between a reactive response and an anticipatory response? Many scientists expect global temperatures to _______ by 2100. The warming winter climate … Damages from a catastrophe are of a magnitude that requires a long recovery period. Why might global warming increase the magnitude and/or frequency of weather-related hazards? Explain why entering an interglacial period resulted in an increase in biodiversity on Earth. Or going backwards? Many conditions affect weather. What was not a factor in the flooding of New Orleans during Hurricane Katrina? Africa was covered by glaciers during the Pleistocene ice age. One of the most environmentally sound adjustments to hazards. c) Both of the above statements are true. In some climate models, carbon cycle feedbacks from both land and ocean add more than a degree Celsius to global temperatures by 2100. b) An earthquake causing a landslide along a coastal area. (example: the larger the flood, the less frequently it happens). While many human activities produce greenhouse gases, the greenhouse effect is actually a natural process. Tornado and Windstorm, Lightning, Flood, Hurricane. Which of the following continents was covered by glaciers during the Pleistocene ice age? 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