The research alleges that other celebrities are guilty of damaging the planet, including the former boxer Floyd Mayweather, legendary filmmaker Steven Spielberg and talk show legend Oprah Winfrey.
Meanwhile, Swift has confessed that she went through a "very hard time" during her public feud with music mogul Scooter Braun.
The pop star was involved in a public row with Braun after he purchased her back catalogue in a big-money deal and allegedly placed restrictions on her performing her hits live.
Swift lifted the lid on the troubled time during a talk at a New York screening of her new film All Too Well: The Short Film and said of the feud: "It was a very hard time for me. A lot of my hardest moments and moments of extreme grief or loss were galvanised into what my life looks like now."
Swift directed the project - which stars Dylan O'Brien and Sadie Sink - and claims that it marked a new chapter in her career.
She told the audience: "(This is) me stepping out of what I usually do, which is writing songs and singing them ... It was a vulnerable moment where you're sort of on the precipice of finding something new and you're just really hoping you do everything perfectly. It is also important to remind yourself you shouldn't do everything perfectly
because you need to learn and grow."
