A powerful 6.8-magnitude undersea earthquake struck early Friday off the Ionian Sea island of Zante, causing structural damage but no injuries, officials said.

Six different sub-species of tigers exist today, scientists confirmed Thursday, amid hopes the findings will boost efforts to save the fewer than 4,000 free-range big cats that remain in the world.

New York state is suing Exxon Mobil, alleging it defrauded investors by misrepresenting the costs that climate change legislation poses to the company.

A powerful thunderstorm carrying hail and strong winds wreaked havoc on Thursday across Lebanon.

The storm, which is expected to subside Friday afternoon, damaged cars, shops and apartments in the capital and its suburbs.

Deepening climate change will swell Central American migration to the United States, the region's environment ministers and experts warned Tuesday as a caravan of mostly Honduran migrants trekked towards the US border in defiance of President Donald Trump.

The U.N.'s climate chief on Tuesday said the COP24 summit in Poland must produce a detailed program to move the Paris climate accord forward. 

World leaders have been trying to breathe new life into the Paris Agreement amid backsliding from several nations over commitments made when it was signed in December 2015.

Mice brought to a remote South Atlantic island by sailors in the 19th century are threatening seabirds including the critically endangered Tristan albatross, a British charity said on Monday.

Qatar was hit by widespread flash flooding on Saturday as the desert state received almost a year's worth of rainfall in one day.

Roads became impassable, air traffic was disrupted and homes were flooded, while shops and universities closed.

Energy sector carbon emissions will rise in 2018 after hitting record levels the year before, dimming prospects for meeting Paris climate treaty goals, the head of the International Energy Agency (IEA) has said.

Hurricane Michael killed at least 16 people in Florida, most of them in the coastal county that took a direct hit from the storm, state emergency authorities said Tuesday. That's in addition to at least 10 deaths elsewhere across the South.

The scope of the storm's fury became clearer after nearly a week of missing-persons reports and desperate searches of the Florida Panhandle neighborhoods devastated by the most powerful hurricane to hit the continental U.S. in nearly 50 years.