Russian climate envoy Anatoly Chubais’s decision in March to resign from the government and leave Russia may turn out to be highly significant.

By reopening a window on recent Russian history, Chubais’s exit could bring some order to the West’s “KleptoCapture” strategy, which aims to freeze the assets of about a dozen Russian “oligarchs” described as “appendages of Putin’s regime.”

But it could potentially do much more. Just last week, the United States also implemented sanctions on Putin's two daughters, 36-year-old Maria and 35-year-old Katerina, who the U.S. believes may be hiding some of their father's wealth.