Green Truth is the title of the 109th issue of the Italian comics series W.I.T.C.H.
The girls are attacked by their own elements! so they contacts Kandrakar to get answers and Yan Lin tells them it's Earth who speaks to them. WITCH then has 24h to find a solution to Earth's problems. They try using magic many times, but in vain. Just when they're about to give up, Will discovers that in order to save Earth, all people need to make small changes in their everyday lives.