The general agreement among scientists that global warming is a result of human influence, is nearly 100 percent unanimous according to the leading author of the most official study on the topic, and complete unanimity could be achieved after other research clarifies some of the left over uncertainty.
Several studies published in Nature and Nature Geoscience are based on vast historical data, which reveals that over the last two millennia, there hasn’t been a time when temperature shifts have been as rapid and substantial as they have in the last few decades.
The former notion was that similar ups and downs may have taken place in the past, including in times such as the Little Ice Age and the Medieval Climate Anomaly. However, the studies used reconstructions founded on 700 verified records of temperature shifts, such as ice and trees, which suggest that none of the changes occurred in more than 50 percent of the planet at any single period.
For instance, the Little Ice Age found its pinnacle during the 1400s in the Pacific Ocean, the 1600s in Europe, and the 1800s in other areas, according to one of the studies. This localization is distinctly dissimilar from the tendencies were seeing since the last few decades, where records are being exceeded with each passing year across nearly the whole planet, which includes this summer’s heatwave in Europe.
Causes of climate change are undeniable
The authors say that this emphasizes how unnaturally climate change has developed over the last few years due to industrial emissions, with destructive elements such as automotive exhaust fumes, massive factory chimneys, deforestation, animal agriculture, and other culprits of greenhouse gasses collectively causing greater damage and instability.
“There is no doubt left, as has been shown extensively in many other studies addressing many different aspects of the climate system using different methods and data sets,” says Stefan Brönnimann from the University of Bern as well as the Pages 2K consortium of climate scientists.
Other scientists said it was a crucial advancement in the identification of how human actions have altered global climate conditions.
“This paper should finally stop climate change deniers claiming that the recent observed coherent global warming is part of a natural climate cycle. This paper shows the truly stark difference between regional and localized changes in climate of the past and the truly global effect of anthropogenic greenhouse emissions,” said climatology professor, Mark Maslin, University College London.