A toxic cane toad prevalent in Australia's tropical north has been captured near Sydney, sparking fears the invasive species could be adapting to cooler weather and spreading southwards, further threatening the country's unique wildlife.

The whoosh of wings disturbs the quiet of an abandoned, pitch-black maze of corridors next to the Jordan River in the occupied Palestinian territories.

Temperatures hit a record 69.8 degrees Fahrenheit in Alert, the northernmost permanently inhabited spot on the planet less than 600 miles from the North Pole, the Canadian meteorology service said Tuesday.

The Pacific's low-lying reef islands are likely to change shape in response to climate change, rather than simply sinking beneath rising seas and becoming uninhabitable as previously assumed, new research has found.

Atoll nations such as Tuvalu, Tokelau and Kiribati lie only a few metres above sea level and are considered the world's most vulnerable to global warming, with fears their populations will become climate refugees as waters rise.

On the shores of Lake Malawi, a crowd eagerly awaits the arrival of a white and yellow cedarwood boat carrying its haul.

Tropical Storm Barry buffeted the US state of Louisiana on Sunday, bringing warnings of heavy rain and possible tornadoes even as it weakened.

Millions of residents in Louisiana on Friday braced for impact from Tropical Storm Barry, which is threatening the southern US state and its largest city New Orleans with potentially disastrous rainfall and flooding.

Sharks -- the sea's top predators for millions of years -- are at risk of disappearing from the Mediterranean as overfishing and plastic pollution choke populations of the endangered hunters, conservationists warned Friday.

A range of British music artists, labels and studios banded together Friday to declare a climate and ecological emergency and pledged to rethink their environmental impact.

Six people died and at least 23 were injured as a fierce storm tore through a beachfront in one of Greece's top tourist areas, terrifying thousands of holidaymakers caught in the open, authorities said Thursday.