Digital technology isn't particularly sustainable. From today's "Do Just One Thing" column:
"Whenever you stream a video, do an internet search or buy something online, energy is used beyond just what your phone or laptop is drawing. Those bytes of information come from a data center where an incredible amount of energy is consumed to meet the constant demand from users. In fact, these centers currently use a whopping 2% of the world's energy."
Add in the mining needed for the metals in phones, the lack of recycling of phones and other e-waste--"digital technology" isn't saving the planet.