California has the most polluted cities in the United States, a report issued on Wednesday said, as President Donald Trump's administration seeks to force the state to weaken its vehicle emissions standards.

China has a found a novel way to tackle its massive air pollution problem: Putting up a giant air purifier the size of an industrial smokestack in the middle of a smog-plagued city.

Prime Minister Justin Trudeau has said his government is holding "financial discussions" and weighing legislation to help resolve a high-stakes clash between two Canadian provinces over a major pipeline project.

A prominent American lawyer and gay rights activist has died after setting himself on fire at a New York park to protest damage being done to the planet, according to U.S. media reports.

A trial date has been set for October 29 in the case of nearly two dozen U.S. youths suing the U.S. government for failing to protect public resources by burning fossil fuels.

A man has been found dead and several people are missing after a landslide engulfed houses in southern Japan on Wednesday, local officials said.

Shallow wells dug for drinking water in the Amazon basin in order to avoid polluted rivers contain up to 70 times the recommended limit of arsenic, researchers warned Tuesday.

A 4.7-magnitude quake has hit an area of central Italy near Macerata which was struck by a series of powerful quakes in 2016. No deaths or injuries have been reported.

Mayors in towns affected are reporting some damage from the temblor, which struck around dawn, and said that checks were under way. Schools in many towns have been closed for the day, as was a local train line.

Will we someday be able to fly without the guilt of causing environmental damage? A handful of firms and regulators hope that the electric revolution in cars will also take to the skies, helping the industry cope with an expected boom in travel and reduce greenhouse gas emissions. 

An oil spill off Borneo island that led to five deaths and the declaration of a state of emergency was caused by a ruptured undersea pipe, Indonesia's national oil company Pertamina said Wednesday.