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Climate Science

Climate Science 101

• It’s Warming (1)
• It’s Us (2)
• We’re Sure (3)
• It’s Bad (4)
• We Can Fix It (5)
• Carbon Fee and Dividend Will Help (6)

1. IPCC AR5 WG1: “Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia.”
2. IPCC AR5 WG1: “It is extremely likely that human influence has been the dominant cause”
   • For the IPCC, "extremely likely means 95% - 100% probability”
3. NASA: “Multiple studies published in peer-reviewed scientific journals show that 97 percent or more of actively publishing climate scientists agree”
4. IPCC AR5 Synthesis: “high to very high risk of severe, widespread, and irreversible impacts globally.”
5. IPCC AR5 WG1: “Limiting climate change will require substantial and sustained reductions of greenhouse gas emissions.”
6. Regional Economic Models, Inc Report.:  During the first 20 years the Carbon Fee and Dividend policy from Citizens Climate Lobby would lead to:

• A 50% reduction of carbon emissions below 1990 levels, and dropping rapidly
• The addition of 2.8 million jobs and $1.375 trillion in GDP from economic stimulus of the dividend

The avoidance of 230,000 premature deaths due to reduction in air pollutants

Climate Science 201

• Intergovernmental Panel on Climate Change Special Report on Global Warming of 1.5 °C (SR15)​​​
• NASA: Scientific Consensus about Human-Caused Climate Change
• American Association for the Advancement of Science: What We Know
• National Climate Assessment (2014)
• IPCC Climate Assessment Report AR5
• EPA Climate Indicators (2016)
• Center for Climate and Energy Solutions (C2ES) Animation of ​Emissions, CO2, and Temperature
• Our Carbon Budget
• Hanson 2016: Ice Melt, Sea Level Rise & Superstorms
• 20,000 Year Earth Temperature Timeline (xkcd)
• Why We Need Carbon Fee and Dividend (John Gage, book)