Blue and Green: Citigroup today released a new policy to cut its lending to the global coal mining industry. The bank updated its environmental and social policy framework, stating that it had begun to cut its credit exposure to coal mining and that [g]oing forward, we commit to continue this trend of reducing our global credit exposure to coal mining companies. This is the second major bank to cut financing for coal mining this year after Bank of America announced a similar policy in May, following years of...