David Bahnsen weighs in on BlackRock's strategy shift to focus on sustainability

Larry Fink, founder and CEO of the world's largest asset manager who oversees nearly $7 trillion at BlackRock, announced in his annual letter that BlackRock will make investment decisions with environmental sustainability as its core goal. David Bahnsen, managing partner and chief investment officer of the Bahnsen Group, joins "Squawk Box" to discuss.