"A group of 11 states and the District of Columbia on Monday urged the U.S. Environmental Protection Agency (EPA) to strengthen the first-ever proposed standards regulating greenhouse gas emissions from airplanes and other aircraft."

"Nearly 200 countries are nearing a legally-binding agreement to reduce pollution from the world’s cargo ships, a step forward after two years of talks on how the industry should clean up its emissions."

"The federal government is raising legal and practical questions about a recent California executive order attempting to end sales of gas-powered cars in the state by 2035."

"California will ban the sale of new gasoline-powered cars to combat climate change starting in 2035, a move that could help reshape the nation’s automobile market and its output of greenhouse gases."

"An international team of prominent scientists has published what they say is the most comprehensive study to date calculating the complex climate impact of aviation emissions, reaffirming that contrail clouds produce more warming than carbon dioxide."

"Thousands of tons of pollution spew into the air in the US from devices that proliferate online and in body shops".

"The sight of a huge oil tanker that has taken on water and is leaning to one side off a remote stretch of Venezuela’s coast has triggered international calls for action."

"The Environmental Protection Agency (EPA) is being sued for the second time in a week over a rule that limits states’ ability to fight big projects such as pipelines, with tribes and environmental groups who fear damage to nearby waters taking the latest action in court."