Finance

Climate Activist Who Took On BlackRock Now Takes Aim at Vanguard

Casey Harrell battles ALS as he starts his latest environmental campaign against fund managers.

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Casey Harrell, the campaigner whose sustained pressure was instrumental in pushing BlackRock Inc. to act against climate change, approaches his work as if locked in a race against time. That was true even before the 42-year-old environmental activist was diagnosed last year with amyotrophic lateral sclerosis, also known as Lou Gehrig’s disease.

Harrell’s latest effort, focused on Vanguard Group Inc., is likely to be his last.