Isn't Barbara Streisand the most generous star, she plans to support many causes: the environment, education and women's health. This summer she will be touring the United States and all her proceeds will be donated to these causes.

This has been the inspiration for me to get back in the saddle and tour. The increasing need for private citizen support to combat dangerous climate change, along with education and health issues, was the prime reason I decided to tour again," Streisand said in a statement, according to Access Hollywood. "I have had the need and desire to tackle these causes directly and so happy I can support it."
Source: accesshollywood