Under cofounder Jensen Huang, Nvidia has become the engine for the AI boom — and one of the tech industry’s biggest environmental liabilities. Its sought-after chips have triggered a new wave of water- and chemical-intensive factories, drained power grids from inside massive data centers, and set the stage for a looming e-waste problem. Under Huang’s leadership, Nvidia clashed with environmental groups seeking to hold the company accountable for its so-called “hidden” emissions.