Tech billionaires invest in dairy supplement

Bill Gates of Microsoft, Jeff Besoz of Amazon and Jack Ma of China’s Alibaba are all investing in Rumin8, an Australian company that turns seaweed into a supplement for dairy rations.

Rumin8 reduces methane production, believed to be a cattle-related contributor to greenhouse gas emissions and global warming.

They are putting about $16 million into Rumin8 via Gates’ Breakthrough Energy Ventures investment fund.