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