Sign of the times: Now Reuters says that "Vast uncertainty remains over the causes of melting Arctic sea ice"

COLUMN-Ice-free Arctic Ocean in 2030?: Wynn | Reuters

Feb 15 (Reuters) - Vast uncertainty remains over the causes of melting Arctic sea ice and when it may disappear altogether during the summer, which would have consequences for oil explorers, shipping firms and the fight against climate change.

The answer will depend on the balance of natural and manmade causes.