Gates, Bezos, others launch energy tech VC fund

Microsoft founder Bill Gates, Amazon.com CEO Jeff Bezos, and SoftBank CEO Masayoshi Son are investors in a new clean energy technology venture firm launched Monday.Breakthrough Energy Ventures, a US$1 billion venture capital fund, will focus on "next generation technologies to provide reliable, affordable, zero-carbon energy, food, and products to the world," according to its website.Other investors include Virgin Group founder Richard Branson, LinkedIn co-founder Reid Hoffman, Alibaba Group Exe