PDF-Anthropogenic Global Warming Science Assessment Report

Although climate science is not one of our technical specialties the required expertise in physics chemistry geology meteorology biology data analysis and interpretation and complex systems modeling is similar to our collective academic training and. Many people consider that Global Warming is the greatest environmental threat of the 21. st. Century. . However, during the 80s and early 90s scientists argued about the causes and effects of global warming. . The settled issues. . Topics. Definitions. An absurdity which needs to be addressed. What has been established? What is at issue?. Science. The Scientific Consensus. Some common challenges to anthropogenic climate change (and why they fail). What are the threats?. What are the facts?. What is best to do?. Objectives. Examine in a thorough, yet understandable way, the theory of man made global warming. Analyze its plausibility. Review other factors, besides CO2, that may also impact the climate.. to increasing support for climate action. John Cook. Global Change Institute, University of Queensland. 19 Sep 2013. “Science . is not a democracy. . It . is a dictatorship. . It . is evidence that does the dictating. By Matthew and saeb . What is global warming. Carbon dioxide and other air pollution that is collecting in the atmosphere like a thickening blanket, trapping the sun's heat and causing the planet to warm up. Coal-burning power plants are the largest U.S. source of carbon dioxide pollution -- they produce 2.5 billion tons every year. Automobiles, the second largest source, create nearly 1.5 billion tons of CO2 annually. By Amanda Vang and Sydney Billington. What is Global. Warming?. Global warming is a when the earth’s temperature increases and it can change the earth’s climate permanently. Released greenhouse gases, increased amount of carbon dioxide, burning fossil fuels and human activities such as driving and cutting down trees and plants can cause global . Physics Today August 2002 30-36. 01/23/15. Mean . D. = 0.4. ‰. Compare 1970 with 1990. Change in profiles of . d. 13C. f. rom 1970 to 1991. Need depth integrated. c. hange in global ocean. d. 13C. Foreman Room 102. 1. Global Warming and Ozone Depletion take place in two different layers of the atmosphere: . Global Warming. Ozone . Depletion. Global Warming vs. Ozone Depletion: Causes. Global Warming: cars, factories, rice farming, landfills: . . . Physics Department Colloquium . UNC . Chapel Hill. . September 8, 2014. . William . Happer. Princeton University. Will Happer, Climate Scientist, 1982. Climate Change. Major Anthropogenic Sources. CO. 2. Aerosols. Cement manufacturing. Land use. Ozone depletion. Animal agriculture. Deforestation. CO. 2 . emissions. Fossil Fuel combustion and other human activities emit 30 . .. Dr. Gene Fry . .. March 2019 . .. . Climate Changes without Humans. .. Climate has been changing for hundreds of millions of years (MY).. Mostly, it’. s been much warmer, with much higher CO. .. Dr. Gene Fry . .. March 2019 . .. . . US Warming Graph. .. At 5.4. º. F / century, in 2100 summer in Salina would be as hot as Dallas now.. Warming at 10.0. º. F / century, in 2111 it would be as hot as . Global surface temperature increased 0.74 ± 0.18 °C during the 100 years ending in 2005.The Intergovernmental Panel on Climate Change (IPCC) concludes "most of the observed increase in globally averaged temperatures since the mid-twentieth century is very likely due to the observed increase in greenhouse gas concentrations"via an enhanced greenhouse effect. . Global warming is when the earth heats up and the temperature increases. More recently, the temperatures have been rising, causing more dangers for people, animals, plants and our environment.. The Greenhouse Effect.