In part one of two, Chris Sacca, the billionaire venture capitalist and former "Shark Tank" star, shares his thoughts on the right mix between profitability and sustainability for a business, what he likes to see from investors in a pitch meeting with him, and how climate tech—his new investing target—belies the greater challenges facing our planet.

"God bless anyone turning their lights off, and moving to LEDs," Sacca says. "That stuff does matter. But the reality is: If we're going to change stuff at scale, we have to completely redo how energy is generated on this planet."

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