G.R. No. 209271; G.R. No. 209276; G.R. No. 209301; G.R. No. 209430 – 774 Phil. 508 – 791 Phil. 243 – Remedial Law – Rules of Procedure on Environmental Cases – Writ of Kalikasan – Precautionary Principle Moot and Academic Principle – Exceptions; Capable of Repetition Yet Evading Review […]