However, these pollutants trap the heat, causing the planet to get warmer. The gradual shift in Earth's tilt changed where and how much sunlight fell on the Northern Hemisphere. Of these two, which do you consider more important for humanity? Relevant to this question, the NAS report titled Limiting the Magnitude of Future Climate Change explains policies that could be adopted to slow or even reverse global warming. An overall shift toward more extreme and longer-lasting heat waves has been observed. From the year 1900 to now, what do you believe has been the change in the global average temperature? True . Alternative methods to slow or reduce global warming have been proposed that are, collectively, known as "climate engineering" or "geo-engineering." The "Greenhouse Effect" is real and contributes to global warming. This threat includes both the gradual upward creep of sea level and periodic, catastrophic ocean surges associated with land-falling cyclones. Different scientific and technical teams in the United States and other countries have assessed weather stations' historical temperature data and concluded that the data are of high quality and are well suited for studies of global temperature changes from 1880 to 2012.[4,5,6,7]. Rapid societal responses can significantly lessen negative outcomes." In developing nations, populations are much more vulnerable to weather and climate extremes and are less able to adapt. Of the following, the most impactful action you can take to reduce your carbon footprint is: Turn off your lights more often Drive a hybrid car Eat a plant-based diet lightning-triggered wildfires probably grew more frequent, and burned over larger areas, thereby accelerating the conversion of forest biomass into carbon dioxide and methane gas, which added to the warming. answer choices . These are just two examples of how extreme events are becoming more extreme. Which of the following is not a major greenhouse gas? [1, 2] Such a dramatic rise in temperature in three consecutive decades is a clear indicator that the globe is warming. [13,14] The combination of warming temperatures and melting ice sheets and glaciers is causing global sea level to rise, which presents a growing threat to vital coastal ecosystems and millions of people around the world who live in coastal regions. Plants are blooming earlier in the spring. Correct descending order of relative contribution of various greenhouse gases to total global warming is, (a) carbon dioxide; methane; CFCs; nitrous oxide, (b) carbon dioxide; methane; nitrous oxide; CFCs, (c) carbon dioxide; CFCs; nitrous oxide; methane, (d) carbon dioxide; CFCs; methane; nitrous oxide, 5. Do the terms "global warming" and "green house effect" mean the same thing to you? The most vulnerable people—children, the elderly, the poor, and those with health conditions—are at increased risk for climate-related health effects. In the short term, farmers in some regions may benefit from the earlier onset of spring and from a longer warm season that is suitable for growing crops.  Adaptable species with wide geographic ranges—such as white-tailed deer and feral hogs—are likely to continue to thrive. help people to understand and evaluate options for mitigating and adapting to climate-related impacts. Are humans causing or contributing to global warming? Water availability will be impacted in drier agricultural areas that need irrigation. The amount of carbon dioxide in the atmosphere has increased from about 278 parts per million (ppm) in 1800 to about 398 ppm today. Video: Lights of human activity shine in NASA's image of Earth at night A quick guide to the science behind sea level rise from an ice-loss perspective, what it means in relatable terms and why it matters. Though these important greenhouse gases occur naturally in the atmosphere in varying concentrations, human activities are directly and indirectly increasing their abundance. MCQ on Global Warming MCQs on Global Warming For NEET 2020 The process of global warming takes place when greenhouses gases such as carbon dioxide and other such pollutants accumulate in the atmospheric layer and absorb sunlight and other solar rays, … Consequently, climate models project that global warming will tend to cause wet regions to get wetter and dry regions to get drier. Explore other important MCQs on different topics important for NEET at BYJU’S. Because most human-produced heat-trapping gases come from burning fossil fuels, there is great potential for the collective actions of many individuals worldwide to reduce global warming by making changes in their daily and annual activities that produce heat-trapping gases and aerosols. As a result, productivity in people, plants, and animals declines which, in turn, hurts our quality of life and economy.  If the sun had intensified its energy output then all layers of Earth's atmosphere would warm. ... many of the observed changes noted above are beyond what can be explained by the natural variability of the climate. For example, a doctor may have a hard time determining exactly when a particular overweight, middle-aged person who smokes cigarettes is going to die. , The primary cause is that, over the last 200 years, human activities have added about 500 billion metric tons of carbon dioxide to the atmosphere, increasing the abundance of this heat-trapping gas by about 40 percent. [27, 28] Heat waves will tend to be a bit hotter— both the daily high and daily low temperatures. Whereas aerosols linger in the atmosphere from days to a few weeks, heat-trapping gases that humans release to the atmosphere linger from decades to centuries. In the absence of efforts to curb the rise in the emission of green house gases, how much do you estimate the global average temperature will rise in the next 100 years? What is global warming, and how is it different from climate change and climate variability? the consensus of scientists is that the problem warrants drastic action. But these and other known problems have not been ignored; rather, steps have been taken to remove or minimize non-climate impacts on the long-term records. From where do you usually get information about Climate Change/the Greenhouse Effect/Global Warming? [17,18] Ocean absorption of excess heat is currently helping to slow the rate of global warming.  The year 2012 saw thousands of temperature records broken all over the United States, and it was by far the U.S.'s warmest year on record. The rays typically escape into space. As Earth's temperature rises, the rate of evaporation increases too. This warming is referred to as the "greenhouse effect," and the gases that trap heat are called "greenhouse gases."
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