One of modern climate science’s pioneers is warning that the world isn’t just steadily warming but is dangerously accelerating, according to a study that some other scientists call a bit overheated.
data shows that 0.27 degrees is the rate since September 2010. That starting date is key because that's when scientists could start to see the effect of clean air regulations that reduced aerosol pollution and the amount of sulfur in fuel used by ocean shipping, Hansen said. That type of more traditional sooty air pollution has a cooling effect that masks a fraction of the warming from the burning of coal, oil and natural gas, Hansen and many other scientists said.