evidence: - ^ "Texas Was Warned a Decade Ago Its Grid Was Unready for Cold". Bloomberg L.P. February 17, 2021. Retrieved March 2, 2021. [...] - ^ Johnson, Brad (February 24, 2021). "Texas Grid Was 4 Minutes and 37 Seconds from a Statewide Blackout, Per ERCOT". The Texan. Retrieved July 12, 2024. [...] - ^ Dexheimer, Eric. "February power blackouts across Texas echoed 1989 failures, state report shows". Austin American-Statesman. Retrieved March 2, 2021.