[10][11][12] Activist groups, funded by the foundation, also kicked off a campaign #ExxonKnew, accusing that ExxonMobil has knowingly downplayed the threat of climate change.
[13] He laid out his case against the company, detailing its practices of financing climate contrarianism and driving partisanship on the issue, in a two-part essay published in The New York Review of Books, where he once worked as an editorial assistant.
[2][9][14] With the family's encouragement and using the evidence provided by the family-funded investigations, a number of states, cities, and individuals sued ExxonMobil for its environmental practices.
[9] Kaiser died of brain cancer on July 15, 2020, at his family home on Mount Desert Island, Maine.
He is survived by his wife, Rosemary Corbett, whom he married in 2012,[2] and his sister, Miranda Kaiser, who became president of the Rockefeller Family Fund in 2019.