Despite a lack of coordinated U.S. policy on climate change, the nation's renewable energy capacity has surpassed that of coal power generation.
As the universe of exchange-traded funds in general, and passively-managed ETFs in particular, has exploded, so have worries about market contagion.
"The current environmental conditions are ripe for a Black Swan."
The bitcoin market isn’t yet mature enough to support an exchange-traded fund (ETF).