Question: Who cut down the trees in the lorax?

Disambiguated questions and answers:
context: Over Ted's various visits, the Once-ler recounts the story that when he was a young man, he departed his family to find good material for his Thneed invention, a piece of cloth that has multiple uses, and make a business. The Once-ler meets the guardian of the forest, the Lorax (Danny DeVito), after cutting down a Truffula tree in a lush Truffula tree forest valley ("This is The Place"). The Lorax urges the Once-ler to leave the forest, but the Once-ler refuses. Eventually, the Once-ler promises not to chop another tree down, and the two seem to begin a friendship of sorts. Then, the young businessman's Thneed invention becomes a major success ("Everybody Needs a Thneed") and the Once-ler's family arrives to participate in the business. At first keeping his promise, the Once-ler continues Thneed production by harvesting the Truffula tree tufts in a slow, but sustainable manner. However, his greedy and lazy relatives soon convince him to resume chopping down the trees, causing him to end his friendship with both the Lorax and the animals. Over time, the Once-ler's deforestation spirals into a mass overproduction. Flushed with wealth, the Once-ler rationalizes his short-sighted needs into arrogant self-righteousness, and the Lorax's helpless protests do not stop him ("How Bad Can I Be?"). The Once-ler pollutes the sky, river, and landscape, until the very last Truffula tree falls. With no further chance of business, he is left broke and his family promptly disowns and abandons him. With the region uninhabitable because of the pollution and deforestation from the Once-ler's business, the Lorax sends the animals off, hoping that they will find a new place to live before the Once-ler sees him depart into the sky, and disappear, leaving only one word on a small pile of rocks: "Unless". Distraught, ruined, and filled with regret, the Once-ler becomes a recluse.
question: What character cut down the trees in The Lorax?
short_answers: The Once-ler
wikipage: The Lorax (film)
context: No context provided
question: Who plays the character who cut down the trees in The Lorax movie?
short_answers: Ed Helms

Long-form answers:
knowledge: content: The Lorax is a children's book written by Dr. Seuss and published in 1971.
wikipage: The Lorax
content: The story is commonly recognized as a fable concerning the danger of human destruction of the natural environment, using the literary element of personification to create relatable characters for industry (as the Once-ler), the environment (being the Truffula trees) and activism (as the Lorax).
wikipage: The Lorax
content: The Lorax (also known as Dr. Seuss' The Lorax) is a 2012 American 3D computer-animated musical comedy film produced by Illumination Entertainment and based on Dr. Seuss' children's book of the same name. 
wikipage: The Lorax (film)
long_answer: The Lorax is a children's book about the danger of human destruction of the natural environment, written by Dr. Seuss and published in 1971. The Once-ler causes the environmental destruction by cutting down the Truffula trees. In 2012, Illumination Entertainment produced a 3D computer-animated musical comedy film of the same name and cast Ed Helms as the Once-ler.