Whether the cause is natural or humandriven, global warming is a serious issue that everyone should be aware of. Deloitte sustainability circular economy potential for. A presentation of climate data the way an engineer would show it present all the data, then do analysis. This phenomenon has been observed over the past one or two centuries. In the most straightforward words it is the heating up of the earths atmosphere due to nonstop rise in temperature. Global warming is the increase in the average measured temperature of the earths nearsurface air and oceans since the mid20th century, and its projected continuation. Climate model global warming simulations 18 include substantial changes in tropical rainfall. Circles balloons and squares satellites depict the observations. The intergovernmental panel on climate change ipcc concludes most of the. We evaluate tropical precipitation response in the latest multimodel ensemble of simulations under the. Many pollutants are sent into the air when fossil fuels are burned. A greenhouse or a farm house is a very big enclosure for the plants in a farm to save them from an extremely cold temperature in winter. Global warming and its potential harmful impacts are pressing issues facing scientists and policy makers all over the world. How to understand and interpret global climate model results.
Tropical drying trends in global warming models and. October 1st marks the 17th year of no global warming significantly different than zero, agreed dr. Nordhaus joseph boyer economic models of global warming william d. In forests, some plants and trees leaves can be so dry that can catch on fire. Natural news mike adams reports for years, weve all heard that global warming is threatening our planet. Pdf global warming models collapse, predictions fail. Solar activity it is widely recognized that variations in solar radiation and activities, such as solar flares or sunspots, if large enough, could have an impact on the global temperature. The issue of global warming has three distinct components.
In 1998, coral bleaching affected every part of the worlds oceans reefs lost 95% of coral in maldives, western australia, okinawa and palau. Acid rain gradually destroys almost everything it touches. New climate models forecast a warming surge science. Global warming is a gradual increase in the earths temperature generally due to the greenhouse effect caused by increased levels of carbon dioxide, cfcs, and other pollutants. Improve economic models of climate change 04 april 2014. The troposphere has a thick layer of carbon dioxide and this layer of carbon dioxide serves as a roof of the. Results of global warming global warming is affecting many parts of the world, including melting glaciers, creating the sea to rise even more, and when that happens, the water covers many low land islands. In media, it is synomonous with the term climate change. Global warming itself catastrophic climate alarmism climate mitigation policy each of these components is complex and uncertain.
Study confirms climate models are getting future warming. Global warming happens because the amount of greenhouse gases like carbon dioxide, nitrous oxide, methane, etc. With no unequivocal, smoking gun, causeandeffect evidence that increasing co 2 caused the 19781998 global warming, and despite the media blitz over the 2007 ipcc report, no tangible physical evidence exists that co 2 is causing global warming. Global climate models gcms attempt to create a coarsegrained simulation of the earths climate system using computers.
Projects like these allow students to create a working model on global warming effects, helping them understand the impact of temperature changes and ways to mitigate them. Richard lindzen on december 9, 2008 has neither been. Evaluating presentation formats of local climate change in. Effects of global warming lesson plan ventura county air. Because of the treacherous effects of global warming, some solutions must be devised. Matt kingstringergetty images for nearly 40 years, the massive computer models used to simulate global climate have delivered a fairly consistent picture of how fast human carbon emissions might warm the world.
Students will read an article on one effect of climate change global warming in small groups. Modern global warming is the result of an increase in magnitude of the socalled greenhouse effect, a warming of earths surface and lower atmosphere caused by the presence of water vapour, carbon dioxide, methane, nitrous oxides, and other greenhouse gases. But a host of global climate models developed for the united nationss next. All climate models show continued warming of surface air temperatures in the future. Ecoart festival, berkeley city college addressing global warming through the use of art. Simple models for global warming science projects sciencing. Computer climate models assume that co 2 is the cause and computer model simulations are. Dangerous, sudden global warming occurred the last 50 years. Global warming presentation overview co 2 emissions and global warming. The average global temperature increased by almost one degree celsius during the 20th century, and its still rising. Powerpoint presentation an engineers critique of global warming. In 2014 the ipcc reported that concentrations of carbon dioxide, methane. Global warming and global climate change have led to an increase in the temperature in the area.
The connections between the components are weak to the point of nonexistence. Pdf of ecs using decadally smoothed data between ad. Page 1 ventura county air pollution control district, ventura, ca effects of global warming lesson concepts. The physics of climate change university of virginia. Intended for an audience without much scientific background but a healthy sense of curiosity, the class brings together insights and perspectives from physics, chemistry, biology, earth and atmospheric sciences, and even some economicsall based on a foundation of simple mathematics. Global average midtropospheric temperature variations 5year averages for the average of 102 models runs red line. The global average combined temperature above the land and oceans shows a linear growth trend for the period from 1880 to 2012 each of the last three decades has had a higher temperature than any other decade since 1850 global warming over the past 150 years has determined not only temperature increase, but also rise of sea level. Above all, alternative energy sources solar, wind, hydro, geothermal, bio mass need to be seriously pursued. Global warming global warming refers to an increase in average global temperatures.
United nations intergovernmental panel on climate change. The primary cause of temperature rise is greenhouse gases. Visualizations in a climate change planning process were assessed as very. Climate modelling approaches projecting future changes to the earths climate vary widely. Since the early 20th century, the global air and sea surface temperature has increased about 0. Pdf home made model to study the greenhouse effect and global.
Coral reefs are among the most biologically rich ecosystems on earth. Global warming, the phenomenon of rising average air temperatures. In this activity, you are being called into action by the united nations to examine the causes and potential impacts of global warming and to develop policy. Circular economy therefore has the potential to take us at least 35th of the way in mitigating emissions related to the production of material. Figure1 heat waves, like one in australia in january, will get worse in a warming world. Patrick michaels, director of the cato institutes center for the study of science. Introduction the subjects of global warming and climate change have become parts of both the popular lexicon and the public discourse. Global warming is also causing many more fires that wipe out whole forests. Thereweretellingexamplesofhowirrationallysupportersoftheconsensus hadreactedwhentheywere, forthefirsttime, confrontedbyworldrankingscientistswhowereoutsidethegroupthink. Global warming can do more than just melt polar ice and change weather. Nordhaus and joseph boyer humans are risking the health of the natural environment through a myriad of interventions, including the atmospheric emission of trace gases such as carbon dioxide. A paper in todays issue of science improved surface temperature prediction for the coming decade from a global climate model describes a new and improved climate model that predicts both greenhouse warming and internal climate variability. But now, in a stunning turnaround, world scientists are warning that an era of global cooling seems to be upon us, complete with. They will answer questions on this article and fill in a graphic organizer.
This model can promote an elementary understanding of global warming since it allows a simple formalization of the energy balance for the earth in the stationary. The pollution that causes global warming is linked to acid rain. One thing that causes global warming is electrical pollution, fossil fuels are burned to create electricity. The closest was a russian model that predicted a onedegree increase. Discussions of global warming often evoke passionate responses and fierce debate. The paper introduces global warming, elaborates its causes and hazards and presents some solutions to solve this hot issue. Another thing that makes global warming worse is when people cut down trees. Human activities produce greenhouse gases that accumulate in the atmosphere and cause problems our planet faces today.
Global warming is the phenomenon of gradual increase in temperature near the earths surface. The models hindcasts are substantially better than earlier model results. Models predict that as the world consumes ever more fossil fuel, greenhouse gas concentrations will continue to rise, and earths average surface. Powerpoint presentation global warming and the coming. Pdf climate change and global warming researchgate. Model uncertainty does allow some model to predict anything. This class describes the science of global warming and the forecast for humans impact on earths climate. Global warming is, itself, the product of many factors, and its relevance to. The results of this study of past climate models bolster scientists confidence that both they as well as todays more advanced climate models are skillfully projecting global warming, said study coauthor gavin schmidt, director of nasas goddard institute of space studies in new york. However, it is characteristic of this topic to treat them all as equivalent. To mitigate and adapt to the drought risks, the time to act is now. This happens because global warming can make the earth very hot. Integrating biogeochemistry in broader and more comprehensive. Warming the world economic models of global warming warming the world william d.
1020 1559 140 1295 1305 868 1332 540 892 663 1596 1619 1293 1174 1037 606 858 74 877 625 219 1123 635 1260 858 1146 669 1043 697 1154 487 1226 1322 1188 516 1219 1373