I'm with you on the ire, but that sort of graph is misleading to the extreme. It's like saying there's a new show on your TV and it has 64% more watchers this year than last year, where something established and long-running has 5% more or less. "Data centres" aren't new, but there's a new class of them being built. So they're by definition going to be that bar on your chart.

Percentage change is an indicator of what's new. Make this a chart of overall resources used and you've got something more representative and more honest if you're using this to drum up anger.