Could the Earth's surface Ultraviolet irradiance be blamed for the global warming? A new effect may exist

TL;DR

This paper investigates the correlation between Earth's surface ultraviolet irradiance and temperature from 1980-1999, proposing a new 'Highly Excited Water Vapor' effect to explain solar influence on global warming, especially post-1970s.

Contribution

It introduces the HEWV effect as a novel explanation for solar influence on Earth's temperature, challenging CO2-centric views.

Findings

Positive correlation between UV irradiance and temperature from 1980-1999.

CO2 rise does not explain the correlation, suggesting other factors.

Proposes the HEWV effect as a new mechanism for solar influence.

Abstract

Whether natural factors could interpret the rise of the Earth's surface temperature is still controversial. Though numerous recent researches have reported apparent correlations between solar activity and the Earth's climate, solar activity has encountered a big problem when describing the rapid global warming after 1970s. Our investigation shows the good positive correlations between the Earth's surface Ultraviolet irradiance (280-400 nm) and the Earth's surface temperature both in temporal and spatial variations by analyzing the global surface Ultraviolet irradiance (280-400 nm) and global surface temperature data from 1980-1999. The rise of CO$_2$ cannot interpret the good positive correlations, and we could even get an opposite result to the good correlations when employing the rise of CO$_2$ to describe the relation between them. Based on the good positive correlations, we suggest a new effect, named "Highly Excited Water Vapor" (HEWV) effect, which can interpret how the Sun influences the Earth's surface temperature reasonably, including the rapid warming after 1970s.