For many people, Google is simply the gateway to a vast archive of facts and memories. For those who pay closer attention to its business dealings, the company also invests billions to find new ways to use the power of computers: it’s developing robots, virtual reality gear and self-driving cars. Remember all the hubbub about Google Glass?

Google has been using the same approach in sustainability – spreading its wealth in a variety of projects to cut its waste and carbon footprint, initiatives which may one day generate profits. During the SXSW Eco conference this week, I caught up with Google’s sustainability officer, Kate Brandt, to find out more. Brandt joined the company in July last year after serving as the nation’s chief sustainability officer in the Obama administration.

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