The company also pledged to offset carbon emissions for regular employee travel—as well as for large-scale events, such as #OneTeam2020 and the #TweepTour—by funding green energy projects worldwide, managed by climate change nonprofit Cool Effect. Recognizing that its data centers account for a significant piece of its carbon footprint, Twitter is setting out to achieve 100% carbon-neutral power sourcing in those facilities by the end of 2022, working with Cool Effect to offset carbon emissions in the meantime.