Billionaire Makes $100 Million Donation

George Soros, businessman and philanthropist, announces during a press conference a plan to generate an additional 100 billion US dollars for climate change relief at the UN Climate summit in Copenhagen, Thursday, Dec. 10, 2009.
AP Photo/Anja Niedringhaus
Philanthropist George Soros has announced a 10-year, $100 million grant to Human Rights Watch.

The organization said Tuesday that it is receiving the funding from Soros' Open Society Foundations.

The grant challenges Human Rights Watch to raise an additional $100 million in matching private contributions.

It will require Human Rights Watch to increase its annual budget from $48 million to $80 million within five years.

Soros said in the statement that human rights are "at the heart of open societies."

The international human rights group is based in New York and is supported by contributions from individuals and foundations.