Ahead of Earth Day on April 22 and in response to the Red Sox’s pledge to make Fenway Park carbon neutral by allotting a portion of ticket sales to carbon Ahead of Earth Day on April 22 and in response to the Red Sox’s pledge to make Fenway Park carbon neutral by allotting a portion of ticket sales to carbon offset purchases, PETA’s “Climate Change Cow” mascot, Clarabelle, will moove to Beantown. Alongside a herd of PETA supporters, she’ll pass out free vegan jerky to fans and push Fenway to address the climate catastrophe fully by becoming an all-vegan stadium, as animal agriculture alone is responsible for nearly one-fifth of human-induced greenhouse-gas emissions.