MacKenzie Scott, ex-wife of Amazon co-founder Jeff Bezos, announced Tuesday that she has given away almost $1.7 billion since last fall to 116 nonprofits. Most of the groups committed to equity work that Scott is supporting are led by women, minorities, and LGBTQ people.

Scott made the announcement in a post on Medium, in which she identified nine areas that she focused her giving, which included racial equity, LGBTQ+ equity, gender equity, economic mobility, empathy and bridging divides, functional democracy, public health, global development, and climate change.

Scott, who signed the Giving Pledge last year, is the richest woman in America and has an estimated net worth of around $62 billion.

Though she noted in her post the amount she had given to each cause, she did not specify the amounts donated to each recipient, which range from small nonprofits to large national charities.

‘Like many, I watched the first half of 2020 with a mixture of heartbreak and horror,’ Scott wrote. ‘Life will never stop finding fresh ways to expose inequities in our systems; or waking us up to the fact that a civilization this imbalanced is not only unjust but also unstable.’

Scott said that last fall she started consulting with a team of nonprofit advisers ‘with key representation from historically marginalised race, gender, and sexual identity groups’ to help her identify grantees. That work ‘is ongoing and will last for years,’ she wrote.