(Reuters) - Alphabet Inc's Google aims to replenish 20% more water than its offices and data centers use by 2030, the company said on Thursday, addressing concerns about water-guzzling tech facilities amid record droughts. "We are pledging to a water stewardship target to replenish more water than we consume by 2030 and support water security in communities where we operate," Google Chief Sustainability Officer Kate Brandt wrote in a blog post https://blog.google/outreach-initiatives/sustainability/replenishing-water. "This means Google will replenish 120% of the water we consume, on average, across our offices and data centers." Google uses water to cool its data centers' stacks of computers that store and process search queries, YouTube videos and other data. Microsoft Corp a year ago announced a goal of being water positive by 2030 without specifying a replenishment target.