California Has Cut Toxic Air Pollution by 78% With 82% Fewer Deaths

Here's today's feel-good story:

California has drastically dropped the number of diesel particles that it contributes into the air and, as a result, lowered the number of cardiopulmonary deaths.

UC Berkeley scientists are hailing the state's diesel engine standards along with other measures imposed over a number of years, even though environmental regulations have been loosened in the last few years.

“Our analysis of mobile-source DPM (diesel particulate matter) emissions suggests that many California sector-based policies have been highly effective relative to the rest of the US,” the scientists said in Science.

Read more here.