While Brazil's presidential candidates have not made policy of the Amazon a major campaign topic, climate scientists and environmentalists say the winner of Sunday's race could determine whether, and how soon, the world's largest rainforest could reach a "tipping point."

The key threshold, heavily debated among scientists, in simple terms would be when the dense, humid, moisture-generating forest shifts to a drier ecosystem. That would come with irreversible consequences for biodiversity and the climate, as the forest absorbs massive amounts of carbon dioxide, a greenhouse gas that drives global temperature to rise. Brazil contains about 60% of the Amazon, which is spread across several countries in South America.

Taiwan shut down schools and offices and grounded hundreds of flights as Typhoon Champi brushed by the island Friday, packing strong winds and torrential rains.

Champi peaked at 298 kph (185 mph) maximum sustained winds earlier this week but has weakened to 155 kph (96 mph) winds as it approached Taiwan from the southwest. Its center is forecast to remain offshore as it sweeps by the island's northeastern tip before turning north toward Japan's southwestern islands.

South Korea on Friday proposed military talks with North Korea to resolve disagreements about where their border lies and prevent accidental clashes in frontline areas, seeking to ease tensions after recent landmine blasts injured three South Korean soldiers.

It's unclear whether North Korea will agree to talks. Authoritarian leader Kim Jong Un has taken a hard line toward Seoul and has suspended virtually all dialogue and cooperation with the South in recent years. Meanwhile, North Korea has been adding mines, barbed wire fences, tactical roads, anti-tank walls and other fortifications to what's already one of the world's most heavily armed borders.

President Donald Trump on Thursday accused LeBron James of disrespecting the United States after the NBA star appeared to continue his warmups while the national anthem was performed before Philadelphia's season opener on Tuesday.

"I said right from the beginning that he's no good, a TOTAL DISGRACE," Trump said of James in a social media post sharing the video. "LeBron James should apologize to all of those Great American Warriors and Heroes who died for the American Flag, and all that our Country stands for!"

Police across France are under pressure to maintain security during further protests expected in some cities, while facing scrutiny over their riot-control tactics used during previous unrest that left some teenagers seriously injured.

Officers have appeared outnumbered and overwhelmed during last weekend's protests against rising living costs and poor conditions in schools. Authorities have announced police reinforcements ahead of further protests expected on Saturday, amid fears of renewed violence.

A magnitude 7 earthquake hit China's Tibet region on Thursday evening, killing at least 16 people, injuring 54 and collapsing hundreds of homes in the northern regional city of Nagqu, official media said.

Search and rescue efforts continued following the collapse of at least 339 homes and 20 livestock sheds, the Nagqu media office said, citing city government officials.

Kiryat Shmona has long been a bastion of support for Prime Minister Benjamin Netanyahu's Likud party. But that loyalty is no longer ironclad.

Once a bustling commercial center, Israel's northernmost city was temporarily evacuated three years ago after being battered by rockets from nearby Lebanon, and it still feels half-empty even though the attacks have mostly subsided. Although the town remains staunchly conservative, there are rumblings of displeasure with Netanyahu's handling of the latest war against Hezbollah, and that could bode poorly for him in Israel's election Tuesday.

The Israeli military said two soldiers were killed in Friday's attack by Palestinian gunmen in the occupied West Bank, which also left three other soldiers lightly injured.

The military said Staff Sergeant Ron Yonatan Roytman, 23, and Sergeant Yuval Shai Svilem, 20, both "fell in combat in the Judea Junction", a checkpoint near the city of Hebron in the southern West Bank.

Tom Cruise is being celebrated with a life achievement award from the American Film Institute, AFI's board of trustees said Wednesday The award will be handed out at a gala tribute in Los Angeles at the Dolby Theatre on April 24 next year.

"Tom Cruise is a global icon," said Kathleen Kennedy, chair of AFI's board of trustees, in a statement. She praised Cruise's commitment as an actor and producer and his belief in movies' ability to bring people together.

The world's coral reef ecosystems almost all face a high risk of collapse in the next 50 years mostly due to warming oceans and heat waves, according to a global assessment released Thursday.

The International Union for Conservation of Nature's assessment, announced on the sidelines of a U.N. biodiversity conference in Albania, found that 96% of shallow-water reef systems are already critically endangered and could disappear by 2075.