Arnold Schwarzenegger has four Hummers and likes nothing better than getting up at 5am to ride his Harley Davidson to the beach for breakfast.

After frustrating talks in Bonn with an American delegation in limbo, UN climate negotiators are pinning their hopes for the Paris Agreement's future on diplomatic arm-twisting at the highest level. 

UN climate negotiations conclude in Bonn on Thursday with delegates putting on a brave face despite the threat of an American exodus hanging over their global pact to stem global warming.

Envoys from nearly 200 country signatories to the Paris Agreement kept a close eye on Washington throughout their 10-day huddle for any signal about President Donald Trump's intentions.

Countries at high risk of sea-level rise, drought and storms caused by global warming urged world leaders Wednesday to stay the course despite America's threatened exit from a U.N. climate pact.

A batch of centuries-old olive trees in southern Italy have been moved out of the way of a controversial new pipeline in a dead-of-night operation that required the deployment of dozens of police.

The dried-out oyster shells lie on a landscape parched and cracked by the sun.

U.S. Secretary of State Rex Tillerson warned the governments and peoples of the Arctic on Thursday that President Donald Trump will put America first when it comes to climate change.

Representatives from the eight nations with territory in the great white north and the indigenous peoples who make their homes there had come to Alaska looking for reassurance.

The collapse of a tunnel at the most contaminated nuclear waste site in the United States has raised safety concerns at such facilities described by some as ticking time bombs.

The first tropical storm of 2017 went down in the record books as the earliest named storm formation in the eastern Pacific Ocean, according to the National Hurricane Center.

The White House said Tuesday that Donald Trump will not decide on future U.S. participation in the Paris climate accord before he returns from a trip to the Middle East and Europe later this month.

"The president has been meeting with his team for quite a while on this matter and he will not be making an announcement regarding that agreement until after he returns from the G7," said Sean Spicer.