As the world hurtles towards a greener future, the writing on the wall for oil-dependent economies is becoming increasingly legible. The energy transition, once a distant concept, is now gathering pace, and with it, the specter of lost revenues looms large. A groundbreaking study by financial think-tank Carbon Tracker reveals a stark reality: economies heavily reliant on oil and gas risk losing a staggering $8 trillion in revenue by 2040 if global climate pledges are met.