Russian Scientists Find ‘Appreciable Contribution’ From Natural Variability, Solar Forcing To Recent Warming
By Kenneth Richard on 17. August 2017
Most Of Warming Trend Since 1980s
Is Naturally Driven, Not CO2-Driven
According to a new statistical analysis of centennial-scale surface temperature changes, half (0.5 °C) of the warming trend over the last 135 years (0.95 °C) can be explained by both (a) the existence of commonly-occurring natural (non-anthropogenic) variations of temperature that can reach the same amplitudes of the modern trend (see above image), and (b) external factors such as solar activity and greenhouse gases, with the latter factor accounting for “less than is commonly believed”.
Scientist Dr. Maxim Ogurtsov and his colleagues cite extensive evidence that any external forcing of the modern trend that falls outside the range of natural variability can be appreciably attributed to non-greenhouse factors.
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