Fictional characters

About fictional characters there are many to choose from, some are heroes and others are villains, I think the ultimate villain is Darth Vader, he's a fallen hero who turns to the bad side and decides to destroy everything because of hate. Who's your favorite character? Is it a hero or a villain?

Favorite historical character

One of my favorite characters from history is Edgar Allan Poe, he was a master of horror (if not the creator), he had a tragic life, full of pain and suffering, which is imprinted in his stories. The most important horror tales are his creations, The black cat, The cask of Amontillado or The Raven are some of his greatest.
Who do you admire? Why?

Pollution: Taking care of the planet

Our planet is wonderful place to live, we have many marvelous beaches, forests, beautiful animals and plants, but humans don't know how to take care of the planet. We destroy nature, flowers and animals, seas and air. What can we do to help the planet?