To: IC720 who wrote (1170852 ) 10/14/2019 9:18:16 AM From: Wharf Rat Respond to of 1572629 See the part where the first pink ends? "says that 'in the next 50 years the fine dust...( back to pink) could screen out sunlight"? US and EU got rid of that. How Air Pollution Has Put a Brake on Global Warming In an interview with Yale Environment 360, Norwegian climate scientist Bjørn H. Samset talks about the results of his team’s recent research showing that aerosols linked to human activities cool the planet far more than previously believed. BY RICHARD SCHIFFMAN • MARCH 8, 2018 Pollution particles emitted by diesel cars and trucks, coal-fired power plants, factories, rudimentary cook stoves, and the burning of forests are major contributors to the unhealthy pall of smog that blankets many cities and regions, particularly in the developing world. Scientists have long known that these aerosols serve to block incoming solar radiation and temporarily cool the planet, but now an international team of scientists has quantified that cooling effect , saying the earth would be 0.5 to 1.1 degree C (0.9 to 2 degrees F) warmer if that pollution were to suddenly disappear.e360.yale.edu "Is SO2 the Real Threat" What a fucking idiot. I'm against geo-engineering at this point, but there's a plan to cool the planet with SO2. He should have taken a physics class. Stratospheric Response in the First Geoengineering Simulation Meeting Multiple Surface Climate Objectives Abstract We describe here changes in stratospheric dynamics and chemistry in a first century-long sulfate aerosol geoengineering simulation in which the mean surface temperature and the interhemispheric and equator-to-pole surface temperature gradients were kept near their 2020 levels despite the RCP8.5 emission scenario. Simulations were carried out with the Community Earth System Model, version 1 with the Whole Atmosphere Community Climate Model as its atmospheric component [CESM1(WACCM)] coupled to a feedback algorithm controlling the magnitude of sulfur dioxide (SO2) injections at four injection latitudes. We find that, throughout the entire geoengineering simulation, the lower stratospheric temperatures increase by ~0.19 K per Tg SO2 injection per year or ~10 K with ~40 Tg SO2/year total SO2 injection. These temperature changes are associated with a strengthening of the polar jets in the stratosphere and weakening of the mean zonal wind in the lower stratosphere subtropics and throughout the troposphere, associated with weaker storm track activity. In the geoengineering simulation the quasi-biennial oscillation of the tropical lower stratospheric winds remains close to the presently observed quasi-biennial oscillation, even for large amounts of SO2 injection. Water vapor in the stratosphere increases substantially: by 25% with ~20 Tg SO2/year annual injection and by up to 90% with a ~40 Tg SO2/year injection. Stratospheric column ozone in the geoengineering simulation is predicted to recover to or supersede preozone hole conditions by the end of the century.cgd.ucar.edu