1. Climate Science Crash Course Dana Nuccitelli dana1981@yahoo.com @dana1981 @dana1981

2. Who Am I? B.A. in Astrophysics from UC Berkeley, 2003 B.A. in Astrophysics from UC Berkeley, 2003 M.S. in Physics from UC Davis, 2005 M.S. in Physics from UC Davis, 2005 Environmental Scientist and Risk Assessor working at McClellan Business Park since 2006 Environmental Scientist and Risk Assessor working at McClellan Business Park since 2006 Climate blogger at SkepticalScience.com (since 2010) and The Guardian (since April 2013) Climate blogger at SkepticalScience.com (since 2010) and The Guardian (since April 2013) Author of four peer-reviewed climate science papers Author of four peer-reviewed climate science papers Citizens Climate Lobby Sacramento Chapter member Citizens Climate Lobby Sacramento Chapter member

3. SkepticalScience.com

4. Skeptical Science Myth Rebuttal Levels

5. Skeptical Science Smartphone App

7. The Guardian Climate Consensus – the 97%

8. The Big Question: How do we know humans are causing global warming?

9. The Earth’s climate changed naturally in the past… …and people died naturally in the past

10. CSI: Climate Change

11. Fingerprints of human-caused global warming

12. The increased greenhouse effect

13. Global energy imbalance seen by satellites

14. Incoming energy from the sun has been stable for 50 years

15. Increased greenhouse effect has trapped heat = less outgoing energy

16. Climate research concludes about 100% of global warming over the past 50 years is human-caused

17. Scientists are as confident in human-caused global warming as they are that smoking kills

18. 97% Expert Consensus on Human-Caused Global Warming

19. The Consensus Among 80 National Academies of Science

20. The Consensus Gap

21. 97% Consensus is Big News

22. Is the planet still warming? Yes, and fast! Most popular current myth is that global warming has ‘paused’ over the past 15 years. Most popular current myth is that global warming has ‘paused’ over the past 15 years. This myth is wrong for two simple reasons. First, it ignores that heat continues to build up on Earth, mostly in the oceans. This myth is wrong for two simple reasons. First, it ignores that heat continues to build up on Earth, mostly in the oceans.

23. 90% of Global Warming Heats the Oceans

24. Global Warming Continues

25. Going Down The Up Escalator

26. Where is the Climate Headed? The Reason for Urgency Ancient Egypt Ancient Greece Roman Empire You Are Here Start of Human Civilization

27. Northern California Wildfire Increase in High Emissions Scenario. Area burned in 2085 compared to 1975

28. Current drought caused by “Ridiculously Resilient Ridge.” Climate change connection?

29. 2004 UC Santa Cruz paper predicted a climate connection

30. High pressure zone predicted in 2005 High pressure zone measured in 2013

31. Polar Vortex caused by meandering Jet Stream *

32. Over 70% Arctic sea ice volume loss in 3 decades

34. Climate change contributors to CA drought Loss of snowpack – nature’s water storage for California. Warmer temperatures lead to: Loss of snowpack – nature’s water storage for California. Warmer temperatures lead to: Precipitation falling as rain, not snow Precipitation falling as rain, not snow More precipitation falls in downpours, less absorbed in soil More precipitation falls in downpours, less absorbed in soil Faster snow melt Faster snow melt More evaporation from reservoirs, drier soil More evaporation from reservoirs, drier soil Changing precipitation patterns Changing precipitation patterns Wet areas tend to get wetter, dry tend to get drier Wet areas tend to get wetter, dry tend to get drier High pressure ridges off the coast pushing our rain to the north High pressure ridges off the coast pushing our rain to the north

35. The Effects of 1 meter Sea Level Rise (very possible by 2100)

37. Climate change is about risk management

39. The Carbon Credit Card

40. Revenue-Neutral Carbon Tax Advocated by Citizens Climate Lobby We need to put a price on carbon emissions so consumers can make informed decisions. We need to put a price on carbon emissions so consumers can make informed decisions. California cap and trade system is a good start, but we need action on a national and international level. California cap and trade system is a good start, but we need action on a national and international level. Legislation needs bipartisan support. Legislation needs bipartisan support. Many conservatives are beginning to support a revenue-neutral carbon tax. Many conservatives are beginning to support a revenue-neutral carbon tax. More details from Jerry Hinkle, Northern California Regional Coordinator for Citizens Climate Lobby. More details from Jerry Hinkle, Northern California Regional Coordinator for Citizens Climate Lobby.