23 Experts in the Fields of Solar Physics and Climate Science Contradict the IPCC — The Science is *NOT* Settled

This article was exerpted from Electroverse.co. Go there for the full article. (Please note Electroverse.net has started a new website Electroverse.co)

A diverse expert panel of global scientists finds blaming climate change mostly on greenhouse gas emissions was premature.

Their findings contradict the IPCC’s conclusion, which the study shows, is grounded in narrow and incomplete data about the Sun’s total solar irradiance (TSI).

The scientific review article looks at the role the Sun has played in ‘climate change’ over the last 150 years.

It finds that the United Nations’ Intergovernmental Panel on Climate Change (IPCC) may have been premature in their conclusion that recent climate change is mostly caused by human greenhouse gas emissions.

The paper, written by 23 experts in the fields of solar physics and of climate science from 14 different countries, is published in the peer-reviewed journal Research in Astronomy and Astrophysics (RAA).

The study, which is the most comprehensive to date, carries out an analysis of the 16 most prominent published solar output datasets, including those used by the IPCC.

The researchers compared them to 26 different estimates of Northern Hemisphere temperature trends since the 19th century (sorted into five categories), including the datasets used by the IPCC.

They focused on the Northern Hemisphere since the available data for the early 20th century and earlier is much more limited for the Southern Hemisphere, but their results can be generalized for global temperatures.

The study found that scientists come to opposite conclusions about the causes of recent climate change depending on which datasets they consider.

For instance, in the graphs above, the panels on the left lead to the conclusion that global temperature changes since the mid-19th century have been mostly due to human-caused emissions, especially carbon dioxide (CO2), i.e., the conclusion reached by the UN IPCC reports.

In contrast, the panels on the right lead to the exact opposite conclusion, i.e., that the global temperature changes since the mid-19th century have been mostly due to natural cycles, chiefly long-term changes in the energy emitted by the Sun.

Both sets of panels are based on published scientific data, but each uses different datasets and assumptions.

On the left, it is assumed that the available temperature records are unaffected by the urban heat island problem, and so all stations are used, whether urban or rural.

On the right, only rural stations are used.

While on the left, solar output is modeled using the low variability dataset that has been chosen for the IPCC’s upcoming (in 2021/2022) 6th Assessment Reports. This implies zero contribution from natural factors to the long-term warming.

On the right, solar output is modeled using a high variability dataset used by the team in charge of NASA’s ACRIM sun-monitoring satellites. This implies that most, if not all, of the long-term temperature changes are due to natural factors.

See original article for full text.

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True science is never settled! The debate always continues, otherwise it is not true science.

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