Weather Extremes & Rising Sea Levels as Measures of Global Warming

Views:
 
Category: Entertainment
     
 

Presentation Description

Both weather extremes and global sea levels have been rising. We are experiencing more floods, hurricane damage, droughts, and wildfires. Extreme summer heat anomalies now cover about 10% of land area, up from 0.2% in 1950-1980. The number of natural disasters since 1996 costing $1 billion or more doubled compared with the previous 15-year period. Higher temperature cause dry areas to become drier and wet areas wetter. The latter comes from increased water vapor in the atmosphere. Global sea levels have been rising, in spite of the “Faux Pause,” slowing of the rise in global temperature since 2000 (1). There was also a pause in the global temperature rise from 1940 to 1970, which is attributed to the cooling effect of aerosols from the coal burning during and after WWII. In contrast, the rate of global sea level rise has been increasing without pause. I will show that the continuing sea level rise correlates with increasing carbon dioxide levels. Thus, sea level rise is a better measure of global warming than temperature.

Comments

Presentation Transcript

PowerPoint Presentation:

(1) Weather Extremes (2) Rising Sea Levels as Measures of Global Warming. Paul H. Carr AF Research Laboratory Emeritus www.MirrorOfNature.org

PowerPoint Presentation:

Physics Today, March 2012, pg. 31 NUMBER OF EVENTS WITH DAMAGE OVER $ 1 BILLION (NOAA) 2008: 9 2011: 14 Average since 1980: 3 to 4 Since 1996 over $1 billion damage doubled compared with the previous 15-year period. Hurricane Katrina 2005: $146 Billion Hurricane Irene 2011: $15 Billion Hurricane Sandy 2012: $50 Billion

PowerPoint Presentation:

T 24 Aug 2005. Tropical Storm Approaches Southern Florida. 28 Aug 2005. Katrina, Category 5 Hurricane, gained energetic winds of 175 mph due to the record high temperatures of the Gulf of Mexico. 28 Aug 2005. Katrina, Category 5, 175 mph winds. Absorbed energy from the record high temperatures of the Gulf of Mexico. 29 Aug 2005. Katrina causes $100Bs damage to New Orleans, LA KATRINA: Tropical Storm to Hurricane

PowerPoint Presentation:

MUNICH RE, World’s Largest Reinsurance Firm Report, October 2012. Insured losses in US from thunderstorms alone in 2011 were highest on record: $26 billion -More than double the previous record set in 2010.

PowerPoint Presentation:

Frequency of occurrence (vertical axis) of local June-July-August temperature anomalies (relative to 1951-1980 mean) for Northern Hemisphere land in units of local standard deviation (horizontal axis). Temperature anomalies in the period 1951-1980 match closely the normal distribution ("bell curve", shown in green), which is used to define cold (blue), typical (white) and hot (red) seasons, each with probability 33.3%. The distribution of anomalies has shifted to the right as a consequence of the global warming of the past three decades such that cool summers now cover only half of one side of a six-sided die, white covers one side, red covers four sides, and an extremely hot (red-brown) anomaly covers half of one side. Source: Hansen, J., Sato, M., and Ruedy, R., Proc. Natl. Acad. Sci., 2012. Loaded Climate Dice: global warming is increasing extreme weather events. Extreme summer heat anomalies now cover about 10% of land area, up from 0.2%. This is based on observations, not models.

PowerPoint Presentation:

CORRELTAION BETWEEN TEMP AND CO2 INCREASE 1880 – 1980: CO2 increased 47 ppm. 1980 – 2010: CO2 increased 52 ppm. Aerosols 6

PowerPoint Presentation:

Melting Greenland Melting Antarctica Mountain Glaciers Thermal Expansion Global temperatures have risen since 1960, but rate of sea level rise has be greater. EARTH WILL CROSS DANGER TRESHOLD BY 2036 M. Mann. Scientific American, vol 310, April 2014 Faux Pause 7

PowerPoint Presentation:

8 The rate of sea level increase correlates with the blue line of the CO2 increase. Sea level rise is a proxy for global temperature, since it is due to thermal expansion (50%) and the melting of ice (50%) Sea level rise has increased to 3.1 mm/year ( 1 ft/100 yr )at present from 0.8 mm/year in 1900

PowerPoint Presentation:

Oceanic heat sink.Evolution of the ocean heat content (OHC) at several depths of the global ocean between 1980 and 2011. A Clement, and P DiNezio Science 2014;343:976-978 http://www.sciencemag.org/content/343/6174/976.full Published by AAAS 9

PowerPoint Presentation:

Integrated OHC.Integrated from the surface to different indicated depths in the global ocean, A. X Chen, and K Tung Science 2014;345:897-903 Published by AAAS

PowerPoint Presentation:

Sea levels predicted to rise 2-4 feet by 2100 will flood Back Bay.

PowerPoint Presentation:

1. WEATHER EXTREMES ARE INCREASING - Wet areas are becoming wetter: Floods -Dry areas, drier: Droughts, Wildfires 2. RISING SEA LEVELS ARE A BETTER MEASURE OF GLOBAL WARMING THAN SURFACE TEMPERATURE. Learn more at www.MirrorOfNature.org

authorStream Live Help