Expressing Solar IEEE SCV-PV – Feb 11, 2015 Doug McKenzie
[email protected] Who’s Doug*? LightsOnSolar.com NorCalSolar.org SunWork.org *Also: career coach at AspirationalCoaching.com 2/11/2015 Expressing Solar - Doug McKenzie - Lights On Solar 2 Tonight • Climate Change • Solar Growth • Communicating Climate & Solar • Call to Action 2/11/2015 Expressing Solar - Doug McKenzie - Lights On Solar 3 Climate Change RCP* 2.6, 4.5, 6.0, 8.5 RCP 8.5: 8°F ≈ 4.4° C RCP 6.0: 5°F ≈ 2.8°C RCP 4.5: 4.3°F ≈ 2.4°C 3.6°F = 2° C *RCP = IPCC AR5 (2014) Representative Concentration Pathways: eg: 8.5 watts/m2 chg in radiative forcing. Graphs are from the US National Climate Assessment, May 2014, Full Report, pg 755 2/11/2015 Expressing Solar - Doug McKenzie - Lights On Solar 4 Climate Change • Is happening now • Will get worse, probably a lot worse. IPCC AR5 Summary for Policymakers (2014): Without additional mitigation efforts … warming by the end of the 21st century will lead to high to very high risk of severe, widespread, and irreversible impacts globally. In most scenarios without additional mitigation efforts , warming is more likely than not to exceed 4°C above pre-industrial levels by 2100. The risks associated with temperatures at or above 4°C include substantial species extinction, global and regional food insecurity, consequential constraints on common human activities, and limited potential for adaptation in some cases. • May get outrageously worse – If trillions of tons of methane hydrates and permafrost melt 2/11/2015 Expressing Solar - Doug