Climate Sensitivity is Likely Low Enough to be of Little Concern
Predictions of substantial global warming assume high climate sensitivity to a doubling of carbon dioxide emissions in the atmosphere. For decades, scientists have debated the effect of climate sensitivity, due to the uncertain nature of climate feedback in various models and estimates vary widely.
Estimates in peer reviewed studies range from 0.8°C warming to almost 6.0°C warming by 2100. Such a large range of uncertainty means climate model temperature projections remain dubious, at best.
The best evidence indicates climate sensitivity is at the low end of the range, unlikely to exceed 1.5°C in the 21st century.
Tipping Point – 1.5 Degrees Celsius Warming
1.5 degrees is unnoticeable and not a threat
Climate alarmists (and the IPCC) say we need to limit global warming to 1.5°C above pre-industrial times to avoid disastrous consequences, but data show we have already reached such temperatures.
European temperature data show temperatures began rising about the year 1890. (Note that this was before the large modern rise in CO2 emissions.) As shown by the U.N. Intergovernmental Panel on Climate Change, and many articles such as this, catastrophic predictions of extreme climate change have not come true.