InsideClimate: Billionaire Michael Bloomberg is donating $30 million to bolster the Sierra Clubs 13-year-old campaign to end Americas reliance on coal, one of the biggest sources of greenhouse gases. The grant will bring the former New York City mayor's support for the program to $80 million since 2011.
In reporting the gift Wednesday, the Sierra Club said it obtained a matching $30 million in combined donations from more than a dozen additional funders. They include the Hewlett Foundation, the John D. and...