The ESG Weekly: As Norilsk counts the cost of a diesel spill in the arctic, thawing permafrost sounds a cautionary tale

The spilling of 21,000 tons of diesel in Siberia in late May, 2020 echoes the Exxon Valdez disaster from more than 30 years ago. But the case of Norilsk Nickel also highlights how today's responsible investors find themselves in a new landscape as climate change accelerates, with better data but more vexing conundrums.