Garrison was a huge advocate for the free emancipation of slaves and the overall abolition of slavery. “burning like a fire on the national conscience” refers to the idea that most of the nation knew slavery was wrong and effected the conscious minds of everyone living here and it lingered in the back of everyone’s mind similarly to a fire
Because of increasing sea ice.
In climate change taking place since then, there has been an opposite problem. Beginning in the late 19th century, a reduction of sea ice has been progressing in the Arctic regions. The pace of ice mass loss has been accelerating especially since the 1970s. In the first decade of the 21st century, Greenland's ice loss accelerated at a rate of 30 gigatonnes a year.
