According to the author, these properties contribute to global warming as much as sulfate aerosols contribute to putative cooling. Sulfates and black soot are made by burning coal, and they're both about the same size. Any technology that takes sulfates away, including the abandonment of coal for electrical generation, will also take away the warming from soot. It's a push. Dialing coal out of America's energy equation has been the goal of greens for decades now, despite the fact that it produces the most energy for the lowest cost of any fuel.
Scientists are notorious gossips.
Everyone knows what everyone else is doing before it hits the journals. Dollars to donuts, there were plenty of IPCC scientists who knew this report was coming. They knew that the 10 warming storyline had no basis in fact. Yet several big-name U.S. scientists signed off on the 10 nonsense while representing the Clinton Administration. As such, they showed their political stripes.