The J. Paul Getty Trust will invest $100 million in the conservation of antiquities from ancient societies across the world, citing threats such as sectarian violence and climate change, officials of the Los Angeles-based organization said Tuesday.

The trust, which operates the Getty Museum, has long focused on Greek and Roman antiquities. This new program, however, is designed to expand the conservation efforts it underwrites to countries where they have not worked before, including Southeast Asia and Central and South America.