午餐吃剩飯，濫用紙張，浪費電力...... 羅校長發現藍天小學的同學環保意識很薄弱啊！他決定在學校推行綠色運動，鼓勵大家身體力行愛護環境。文樂心，高立民等一班同學都非常積極參與，認真實踐節能和種植蔬菜，但想不到他們卻成為了浪費大王！究竟這是什麼原因？他們在校園種植又會遇到什麼驚險的事呢？
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