In the brief history of climate finance, 2021 is likely to set a benchmark for future tipping points. Although it’s only January, let’s start thinking of this as the Year of Net Zero. Investment pressure has been gradually building, the way glaciers once did. For one thing, headlines about receding glaciers, burning forests and extreme temperatures have finally brought about a public awareness that the climate is in danger. At the same time, a burgeoning surfeit of new sustainable energy technology is offering novel opportunities for hungry investors. Just what…