Toronto’s snow mountains: towering peaks that refuse to melt and leave a toxic trail

via theguardian.com

Short excerpt below. Read at the original source.

Reaching up to 100ft, these massive piles contain tonnes of salt that keep roads clear – but pose environmental risks Most mountains take tens of millions of years to form. Toronto’s newest mountain took just days. Towering atop the crowns of evergreens, it has no skeleton of limestone or granite. There are no spires, cornices […]

Read at Source