Guardian: The oil billionaire David Koch has stepped down from the board at the American Museum of Natural History, after 23 years and more than $20m in donations to the New York museum.
The conservative magnates departure from one of the USs pre-eminent science museums was cheered by climate scientists and activists who have campaigned for the museum to cut ties with fossil fuel companies and those who head them.
A spokesperson for the museum, Roberto Lebron, told the Guardian that Kochs term on...