In an unprecedented move, 14 billionaires have signed on to the Giving Pledge, an initiative which was started by Bill and Melinda Gates along with Warren Buffett in 2010 to help address society’s most pressing problems by shifting the social norms of philanthropy toward giving more, giving sooner and giving smarter. After signing the pledge, these billionaires will use their wealth to support causes focused on poverty alleviation, education, healthcare research, climate change and the environment.

“We all have a moral obligation as the more affluent in society to give back as best we know how,” MeTL Group CEO Mohammed Dewji of Tanzania was quoted saying by USA Today. Meanwhile, Melinda Gates in a press release said she and Bill Gates are very excited to welcome the new philanthropists. “Bill and Warren and I are excited to welcome the new, very international group of philanthropists joining the Giving Pledge, and we look forward to learning from their diverse experiences,” the statement read.

Here is the list of the new members:

Leonard H. Ainsworth (Australia)
Chairman Emeritus and Executive Director of Ainsworth Game Technology

Mohammed Dewji (Tanzania)
President and CEO of MeTL Group

Dagmar Dolby (United States)
Philanthropist, pro-choice activist, widow of Ray Dolby, founder of Dolby Laboratories

Dong Fangjun (People’s Republic of China)
Dongfang Huiquan Financial Holdings (Chairman)

Kjell Inge Rokke and Anne Grete Eidsvig (Norway)
Chairman of Norwegian industrial investment company Aker

Sir Stelios Haji-Ioannou (Monaco, Cyprus)
Founder of EasyJet

Nick and Leslie Hanauer (United States)
Venture capitalist and founder of Civic Ventures

Iza and Samo Login (Slovenia)
Founders of media and entertainment company Outfit7

Dean and Marianne Metropoulos (United States)
Private equity firm Metropoulos & Co.

Terry and Susan Ragon (United States)
Founder and CEO of InterSystems Corp.

Nat Simons and Laura Baxter-Simons (United States)
Investment management firm Meritage Group; co-founders of Sea Change Foundation

Robert Frederick Smith (United States)
Founder and CEO of Vista Equity partners

Harry H. Stine (United States)
Founder of Stine Seed

YOU Zhonghui ( People’s Republic of China)
Chairwoman of Shenzhen Seaskyland Investment Holdings Group