Venture capitalists offer their investors outsized financial returns in exchange for taking on considerable risk. But what if that risk includes backing products where the economics of the end market aren’t clear? Moreover, what if the companies being supported have the non-financial goal of tackling climate change? As more money than ever pours into climate tech, Azeem Azhar speaks with Shayle Kann, a partner at Energy Impact Partners, about the challenges of investing in the net zero economy.