A new research published in Science journal, suggests an important role for human civilization’s industrial activity on climate change.”When we compare changes in the black carbon to changes in these other indicators, it is clear that most of the increases in black carbon in the late 19th and early 20th centuries, particularly in winter and spring, resulted from industrial emissions – probably from coal burning,” says Dr. Joe McConnell.

clipped from news.bbc.co.uk

Soot ‘influences Arctic climate’

BBC

Human activities have left a visible mark on the Arctic

Measurements from ice cores suggest that soot released by industrial activities has influenced climate change in the Arctic.

The researchers looked at ice cores covering the period 1788 to 2002.

The natural record shows that concentrations of black carbon, or soot, were particularly bad from 1851 to 1951, Science journal reports.

Soot adds to local climate warming because dark ground absorbs energy from the Sun that white snow would reflect.

Joe McConnell and Ross Edwards from the Desert Research Institute (DRI) in Reno, US, gathered and analysed ice core samples from various regions of Greenland.

These samples allowed them to analyse annual deposits of soot and other chemicals going back 215 years.

“In addition to black carbon, we measured a broad range of other chemicals at very high depth resolution in this same ice core,” said Dr McConnell.

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