Energy and Environment Clean Water Without Energy or Toxic Waste Written by Jane Marsh November 23, 2022January 25, 2023 Access to clean water is necessary to sustain life on earth.Yet, a limited amount is drinkable for a planet made up of 70% water. Freshwater accounts for 2.5% of water resources — the rest is ocean water. Even then, glaciers and ice caps contain a portion of it, rendering it inaccessible.Dig deeper → 3 min