A hefty set of tusks is usually an advantage for elephants, allowing them to dig for water, strip bark for food and joust with other elephants. But during episodes of intense ivory poaching, those big incisors become a liability.

Now researchers have pinpointed how years of civil war and poaching in Mozambique have led to a greater proportion of elephants that will never develop tusks.

Scientists attempting to bring back the near-extinct northern white rhinoceros announced Thursday they would stop harvesting eggs from one of two remaining live specimens involved in an unprecedented breeding program.

French oil and gas major Total deliberately downplayed the threat of global warming from the 1970s onwards, according to research based on interviews with former company executives and internal company documents.

The death toll from days of flooding and landslides in India and Nepal crossed 100 on Wednesday, including several families swept away or crushed in their homes by avalanches of mud and rocks.

Africa's rare glaciers will disappear in the next two decades because of climate change, a new report warned Tuesday amid sweeping forecasts of pain for the continent that contributes least to global warming but will suffer from it most.

The report from the World Meteorological Organization and other agencies, released ahead of the U.N. climate conference in Scotland that starts Oct. 31, is a grim reminder that Africa's 1.3 billion people remain "extremely vulnerable" as the continent warms more, and at a faster rate, than the global average. And yet Africa's 54 countries are responsible for less than 4% of global greenhouse gas emissions.

South Korea set a new goal on Monday for fighting climate change over the next decade, saying it will aim to cut its greenhouse gas emissions to 40% below 2018 levels by 2030.

The country had faced criticism that its initial plan for a 26.3% reduction was too modest. In promising stronger contributions to curb global warming ahead of a U.N. climate summit in Scotland next month, South Korean President Moon Jae-in said the new target represents the "most enthusiastic" objective the country could possibly set under current circumstances.

The humpback chub, a rare fish found only in the Colorado River basin, has been brought back from the brink of extinction after decades of protection, though work must continue to ensure its survival, federal authorities said Monday in reclassifying the species from endangered to threatened status.

The fish, which gets its name from a fleshy bump behind its head, was first listed as endangered in 1967, its habitat severely disrupted by dam construction. Its numbers also declined with the introduction of predatory, non-native aquatic species.

A net zero carbon emissions target by 2050 would be a "great positive" for Australia if it can be achieved through technology and not a carbon price, the prime minister said on Tuesday as he pressures government colleagues to commit to more ambitious action ahead of a climate summit.

Prime Minister Scott Morrison last week agreed to attend next month's climate conference in Glasgow, Scotland, but his government colleagues have yet to approve the commitment he wants to net zero.

A strong earthquake struck off the Turkish Mediterranean coast on Tuesday, Turkey's disaster management agency said. There was no immediate report of any damage or casualties.

The Turkish Disaster and Emergency Management Directorate said the quake with a preliminary magnitude of 6.0 struck some 155 kilometers (96 miles) off the resort town of Kas, in Antalya province, at 8:32 a.m..

More than 1,600 firefighters were battling the blaze in the Santa Ynez Mountains west of Santa Barbara on land and by air. They were able to stop its forward growth, and the blaze was 78% contained, federal officials said.

The Alisal Fire started last Monday and has scorched nearly 27 square miles (69 square kilometers). It is threatening about 400 structures.