Show: Climate Science in the National Climate Assessment[7]
Slide: Global Temperature by Year

   

Slide ID: 200

 1 Climate Science in the National Climate Assessment Climate Science in the National Climate Assessment 2 Global Change Research Act (1990), Section 106 Global Change Research Act (1990), Section 106
 3 Previous National Climate Assessments Previous National Climate Assessments 4 Third National Climate Assessment (2014) Third National Climate Assessment (2014)
 5 Fourth National Climate Assessment (2017, 2018) Fourth National Climate Assessment (2017, 2018) 6 Fourth National Climate Assessment (2017, 2018) - continued Fourth National Climate Assessment (2017, 2018) - continued
 7 Previous National Climate Assessments Previous National Climate Assessments 8 Observed Temperature and Related Quantities Observed Temperature and Related Quantities
 9 Global Temperature Change by Decade Global Temperature Change by Decade 10 Global Temperature by Year Global Temperature by Year
 11 Observed U. S. Temperature Change Observed U. S. Temperature Change 12 Indicators of Warming from Multiple Datasets Indicators of Warming from Multiple Datasets
 13 Changes in the Length of the Growing Season Changes in the Length of the Growing Season 14 Observed Increase in Frost-Free Season Length Observed Increase in Frost-Free Season Length
 15 Has Extreme Weather Increased? Has Extreme Weather Increased? 16 2-Day Precipitation Events Exceeding a 5-Year Recurrence Interval 2-Day Precipitation Events Exceeding a 5-Year Recurrence Interval
 17 Observed U. S. Trends in Heavy Precipitation Observed U. S. Trends in Heavy Precipitation 18 Heat and Cold Waves Heat and Cold Waves
 19 Upward Trend in # of Heat Waves Since 1970 Upward Trend in # of Heat Waves Since 1970 20 Heat Wave Numbers are UP Nearly Everywhere Since 1970. Heat Wave Numbers are UP Nearly Everywhere Since 1970.
 21 Heat Wave Numbers are UP Nearly Everywhere Since 1970. Heat Wave Numbers are UP Nearly Everywhere Since 1970. 22 Downward Trend in # of Cold Waves Downward Trend in # of Cold Waves
 23 Downward Trend in # of Cold Waves Downward Trend in # of Cold Waves 24 Cold Wave Numbers are Down Nearly Everywhere Cold Wave Numbers are Down Nearly Everywhere
 25 Energy Usage for Heating and Cooling Energy Usage for Heating and Cooling 26 Upward Trend in Energy Needed for Cooling Since 1970 Upward Trend in Energy Needed for Cooling Since 1970
 27 Cooling Demand is Upward Nearly Everywhere Since 1970 Cooling Demand is Upward Nearly Everywhere Since 1970 28 Downward Trend in Energy Needed for Heating Since 1970 Downward Trend in Energy Needed for Heating Since 1970
 29 Heating Demand is Downward Everywhere Since 1970 Heating Demand is Downward Everywhere Since 1970 30 Why is the Earth Warming? Why is the Earth Warming?
 31 Historical Greenhouse Gas Concentrations Historical Greenhouse Gas Concentrations 32 Global Temperature Changes since 1950 Global Temperature Changes since 1950
 33 800,000 Year Record of Carbon Dioxide Concentration 800,000 Year Record of Carbon Dioxide Concentration 34 Alternate/Additional warming causes Alternate/Additional warming causes
 35 Temperature vs Sun"s Energy Output Temperature vs Sun"s Energy Output 36 IT"S NOT THE SUN IT"S NOT THE SUN
 37 Dust in the Atmosphere Dust in the Atmosphere 38 Volcanic Eruptions and El Nino/La Nina have short-term influences on global temperature Volcanic Eruptions and El Nino/La Nina have short-term influences on global temperature
 39 Attributable Warming oe Cooling Influences of Anthropogenic and Natural Forcings Attributable Warming oe Cooling Influences of Anthropogenic and Natural Forcings 40 What is causing global warming? What is causing global warming?
 41 Historical/Projected CO<sub>2</sub> Concentrations Historical/Projected CO2 Concentrations 42 How much will it warm in the future? How much will it warm in the future?
 43 Global Mean Temperature Anomalies Global Mean Temperature Anomalies 44 Changes in Extreme Temperature Changes in Extreme Temperature
 45 5-day Annual Tmax, high emissions 5-day Annual Tmax, high emissions 46 5-day Annual Tmax, moderate emissions 5-day Annual Tmax, moderate emissions
 47 Projected Change in Seasonal Precipitation late 21<sup>st</sup> Century, high emissions Projected Change in Seasonal Precipitation late 21st Century, high emissions 48 Global Warming→Saturation Water Vapor Increases Global Warming→Saturation Water Vapor Increases
 49 Future Water Vapor Change (2085) Future Water Vapor Change (2085) 50 Future Changes in Extremes Future Changes in Extremes
 51 SUMMARY OF CSSR SUMMARY OF CSSR 52 Concluding Thoughts Concluding Thoughts
 53 Concluding Thoughts - continued Concluding Thoughts - continued