Option 1 -> Too narrow; jute bags are mentioned as merely one example, not the central theme.
Option 2 -> Misleading; the passage discusses energy extracted from Earth's resources (100,000 calories), not dietary calorie consumption.
Option 3 -> Captures the core message: reducing resource/energy consumption through sustainable practices to protect the environment.
Option 4 -> Too pessimistic; while consequences are mentioned, the passage emphasizes actionable solutions rather than doom.
Hence, Option 3: Save Energy, Save the Earth! -> The passage centers on how our energy extraction from Earth has increased dramatically (3,000 to 100,000 calories per capita) and calls for sustainable development through practical, feasible actions to reduce our ecological footprint. This title effectively encapsulates both the problem (excessive energy consumption) and the solution-oriented approach of the passage. -> correct