Executives at every multinational on the planet understand the importance of water conservation, but not every company is investing in it. L'Oréal has purchased a share of Gjosa, a Swiss environmental tech start-up that develops water-saving solutions. Terms of the deal were not disclosed, but the world’s largest beauty company said that it had made the investment through its corporate venture capital fund, called Business Opportunities for L’Oréal Development. “By combining Gjosa’s uniq...