Angry Birds Activity Park in Shanghai.
Peter Parks—Getty Images
By Don Reisinger
April 14, 2016

Apple is once again adding to its environmental cred.

The company said on Thursday that it would donate all the proceeds from certain app purchases and in-app purchases, from now until April 24, to the World Wildlife Fund’s (WWF) “vital global conservation work.”

Apple didn’t hint at how much it hopes to donate to the WWF. Typically, it collects 30% of all app proceeds and in-app purchases from developers.

“Together, our small actions will make big change,” the company wrote about the so-called Apps for Earth program.

The list of 27 apps that will participate in the program are among Apple’s most popular including Trivia Crack, Yoga Studio, and others. Angry Birds 2 and Cut the Rope: Magic are also included.

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Apple has long bragged about it efforts to be more environmentally friendly. Indeed, a press event last month, Apple announced that 93% of its worldwide facilities were now running on renewable energy.

Apple VP of the environment, policy, and social initiatives Lisa Jackson, also touted the company’s robot Liam, which picks apart used iPhones so that their components can be reused. Jackson added that 99% of all of Apple’s product packaging is now sourced from recycled paper or sourced from a sustainably managed source.

Apple (AAPL) is also looking at the material it uses for both its products and stores. Starting tomorrow, Apple will start transitioning its brick-and-mortar stores to using paper bags instead of using plastic bags. The new bags will be made of recycled paper.

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Both announcements came on the heels of a major investment by Apple in green energy in February, when the company issued $1.5 billion in bonds that it said would be used to fund clean energy projects. It’s the largest “green” bond ever issued by a U.S. corporation, Apple said.

Apps For Earth, then, is just an extension of Apple’s efforts for the environment. The program, which marks the first time Apple is donating proceeds generated through apps to environmental causes, coincides with Earth Day, which is April 22.

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