EPA drops regulation for contaminant harming babies' brains

Administrator Andrew Wheeler's announcement was the latest in a series of Trump administration rollbacks or eliminations of existing or pending public health and environmental protections, targeting Obama administration initiatives in particular. The Trump administration says the regulations are burdensome to business and are unnecessary.

Lung Association: L.A. still has nation's 'worst ozone pollution’

Los Angeles remains the city with the worst ozone pollution in the nation, the American Lung Association says in its State of the Air 2020 report, which also cites "growing evidence that a changing climate is making it harder to protect human health."

Delta to invest $1 billion to cut carbon emissions

Delta said the money would go into things such as boosting fuel efficiency and investing in efforts to remove carbon from the atmosphere by planting trees and restoring wetlands.