I totally agree. While scientists can assess the certainly of some changes, Risk assessment is a different creature entirely (The Risk assessment eperts work in insurance — which is why is harder and more expensive to insure an east coast beach residence for flood damage in the US!).

I also agree on CO2 reduction. In fact, that book I recommended, Cut Super Climate Pollutants NOW!, makes the case that in the short run, reducing Methane, Soot and HFCs (refrigerants) is imperative if we are to avoid those tipping points. Why? Because CO2 emissions also put sulfates in the air, which temoprarily block some solar heating and create a short-term cooling effect. So, a rapid drawdown of CO2 would create a short-term warming effect! But, drawing down these superpollutants creates significant short term cooling while we ease off CO2. Please don’t take my word for it, read the book!